Finding the Fourth Proportional to 307,828,061.28, 424,809,597.87 and 175,666,426.56

Step by Step Solution

1. Step 1: Write the proportion equation
   307,828,061.28 : 424,809,597.87 = 175,666,426.56 : x
2. Step 2: Convert to fraction form
   307,828,061.28/424,809,597.87 = 175,666,426.56/x
3. Step 3: Cross multiply
   307,828,061.28x = 424,809,597.87 × 175,666,426.56
4. Step 4: Simplify right side
   307,828,061.28x = 74,624,784,026,213,488
5. Step 5: Solve for x
   x = 74,624,784,026,213,488/307,828,061.28
6. Step 6: Final answer
   x = 242,423,591.00