Finding the Fourth Proportional to 59,436.87, 89,294.63 and 56,074.29

Step by Step Solution

1. Step 1: Write the proportion equation
   59,436.87 : 89,294.63 = 56,074.29 : x
2. Step 2: Convert to fraction form
   59,436.87/89,294.63 = 56,074.29/x
3. Step 3: Cross multiply
   59,436.87x = 89,294.63 × 56,074.29
4. Step 4: Simplify right side
   59,436.87x = 5,007,132,697.69
5. Step 5: Solve for x
   x = 5,007,132,697.69/59,436.87
6. Step 6: Final answer
   x = 84,242.87