Finding the Fourth Proportional to 56,610.57, 78,129.54 and 32,420.55

Step by Step Solution

1. Step 1: Write the proportion equation
   56,610.57 : 78,129.54 = 32,420.55 : x
2. Step 2: Convert to fraction form
   56,610.57/78,129.54 = 32,420.55/x
3. Step 3: Cross multiply
   56,610.57x = 78,129.54 × 32,420.55
4. Step 4: Simplify right side
   56,610.57x = 2,533,002,658.05
5. Step 5: Solve for x
   x = 2,533,002,658.05/56,610.57
6. Step 6: Final answer
   x = 44,744.34