Finding the Fourth Proportional to 56,564.55, 78,059.21 and 31,414.05

Step by Step Solution

1. Step 1: Write the proportion equation
   56,564.55 : 78,059.21 = 31,414.05 : x
2. Step 2: Convert to fraction form
   56,564.55/78,059.21 = 31,414.05/x
3. Step 3: Cross multiply
   56,564.55x = 78,059.21 × 31,414.05
4. Step 4: Simplify right side
   56,564.55x = 2,452,155,768.83
5. Step 5: Solve for x
   x = 2,452,155,768.83/56,564.55
6. Step 6: Final answer
   x = 43,351.46