Finding the Fourth Proportional to 89,502.15, 134,532.18 and 56,434.71

Step by Step Solution

1. Step 1: Write the proportion equation
   89,502.15 : 134,532.18 = 56,434.71 : x
2. Step 2: Convert to fraction form
   89,502.15/134,532.18 = 56,434.71/x
3. Step 3: Cross multiply
   89,502.15x = 134,532.18 × 56,434.71
4. Step 4: Simplify right side
   89,502.15x = 7,592,284,563.97
5. Step 5: Solve for x
   x = 7,592,284,563.97/89,502.15
6. Step 6: Final answer
   x = 84,827.96