Finding the Fourth Proportional to 89,399.59, 134,084.64 and 29,428.85

Step by Step Solution

1. Step 1: Write the proportion equation
   89,399.59 : 134,084.64 = 29,428.85 : x
2. Step 2: Convert to fraction form
   89,399.59/134,084.64 = 29,428.85/x
3. Step 3: Cross multiply
   89,399.59x = 134,084.64 × 29,428.85
4. Step 4: Simplify right side
   89,399.59x = 3,945,956,757.86
5. Step 5: Solve for x
   x = 3,945,956,757.86/89,399.59
6. Step 6: Final answer
   x = 44,138.42