Finding the Fourth Proportional to 260,647,677.30, 391,113,233.55 and 107,309,234.10

Step by Step Solution

1. Step 1: Write the proportion equation
   260,647,677.30 : 391,113,233.55 = 107,309,234.10 : x
2. Step 2: Convert to fraction form
   260,647,677.30/391,113,233.55 = 107,309,234.10/x
3. Step 3: Cross multiply
   260,647,677.30x = 391,113,233.55 × 107,309,234.10
4. Step 4: Simplify right side
   260,647,677.30x = 41,970,061,538,624,920
5. Step 5: Solve for x
   x = 41,970,061,538,624,920/260,647,677.30
6. Step 6: Final answer
   x = 161,022,196.60