Finding the Fourth Proportional to 1,827,011,606.32, 2,521,269,659.28 and 991,636,174.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,827,011,606.32 : 2,521,269,659.28 = 991,636,174.72 : x
2. Step 2: Convert to fraction form
   1,827,011,606.32/2,521,269,659.28 = 991,636,174.72/x
3. Step 3: Cross multiply
   1,827,011,606.32x = 2,521,269,659.28 × 991,636,174.72
4. Step 4: Simplify right side
   1,827,011,606.32x = 2,500,182,200,366,017,024
5. Step 5: Solve for x
   x = 2,500,182,200,366,017,024/1,827,011,606.32
6. Step 6: Final answer
   x = 1,368,454,470.52