Finding the Fourth Proportional to 59,931.48, 89,441.52 and 53,288.64

Step by Step Solution

1. Step 1: Write the proportion equation
   59,931.48 : 89,441.52 = 53,288.64 : x
2. Step 2: Convert to fraction form
   59,931.48/89,441.52 = 53,288.64/x
3. Step 3: Cross multiply
   59,931.48x = 89,441.52 × 53,288.64
4. Step 4: Simplify right side
   59,931.48x = 4,766,216,960.33
5. Step 5: Solve for x
   x = 4,766,216,960.33/59,931.48
6. Step 6: Final answer
   x = 79,527.77