Finding the Fourth Proportional to 234,105,728.43, 323,061,677.60 and 129,683,476.83

Step by Step Solution

1. Step 1: Write the proportion equation
   234,105,728.43 : 323,061,677.60 = 129,683,476.83 : x
2. Step 2: Convert to fraction form
   234,105,728.43/323,061,677.60 = 129,683,476.83/x
3. Step 3: Cross multiply
   234,105,728.43x = 323,061,677.60 × 129,683,476.83
4. Step 4: Simplify right side
   234,105,728.43x = 41,895,761,581,052,112
5. Step 5: Solve for x
   x = 41,895,761,581,052,112/234,105,728.43
6. Step 6: Final answer
   x = 178,960,856.11