Finding the Fourth Proportional to 1,156,881,872.20, 1,596,985,748.89 and 781,047,565.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,156,881,872.20 : 1,596,985,748.89 = 781,047,565.10 : x
2. Step 2: Convert to fraction form
   1,156,881,872.20/1,596,985,748.89 = 781,047,565.10/x
3. Step 3: Cross multiply
   1,156,881,872.20x = 1,596,985,748.89 × 781,047,565.10
4. Step 4: Simplify right side
   1,156,881,872.20x = 1,247,321,830,669,934,592
5. Step 5: Solve for x
   x = 1,247,321,830,669,934,592/1,156,881,872.20
6. Step 6: Final answer
   x = 1,078,175,620.73