Finding the Fourth Proportional to 59,434.62, 89,291.28 and 56,072.04

Step by Step Solution

1. Step 1: Write the proportion equation
   59,434.62 : 89,291.28 = 56,072.04 : x
2. Step 2: Convert to fraction form
   59,434.62/89,291.28 = 56,072.04/x
3. Step 3: Cross multiply
   59,434.62x = 89,291.28 × 56,072.04
4. Step 4: Simplify right side
   59,434.62x = 5,006,744,223.81
5. Step 5: Solve for x
   x = 5,006,744,223.81/59,434.62
6. Step 6: Final answer
   x = 84,239.53