Finding the Fourth Proportional to 272,236,849,196.57, 375,719,795,429.05 and 154,943,011,470.63

Step by Step Solution

1. Step 1: Write the proportion equation
   272,236,849,196.57 : 375,719,795,429.05 = 154,943,011,470.63 : x
2. Step 2: Convert to fraction form
   272,236,849,196.57/375,719,795,429.05 = 154,943,011,470.63/x
3. Step 3: Cross multiply
   272,236,849,196.57x = 375,719,795,429.05 × 154,943,011,470.63
4. Step 4: Simplify right side
   272,236,849,196.57x = 58,215,156,572,906,053,435,392
5. Step 5: Solve for x
   x = 58,215,156,572,906,053,435,392/272,236,849,196.57
6. Step 6: Final answer
   x = 213,840,105,572.45