Finding the Fourth Proportional to 59,663.21, 89,658.85 and 55,762.15

Step by Step Solution

1. Step 1: Write the proportion equation
   59,663.21 : 89,658.85 = 55,762.15 : x
2. Step 2: Convert to fraction form
   59,663.21/89,658.85 = 55,762.15/x
3. Step 3: Cross multiply
   59,663.21x = 89,658.85 × 55,762.15
4. Step 4: Simplify right side
   59,663.21x = 4,999,569,878.98
5. Step 5: Solve for x
   x = 4,999,569,878.98/59,663.21
6. Step 6: Final answer
   x = 83,796.53