Finding the Fourth Proportional to 56,566.31, 78,059.36 and 31,417.43

Step by Step Solution

1. Step 1: Write the proportion equation
   56,566.31 : 78,059.36 = 31,417.43 : x
2. Step 2: Convert to fraction form
   56,566.31/78,059.36 = 31,417.43/x
3. Step 3: Cross multiply
   56,566.31x = 78,059.36 × 31,417.43
4. Step 4: Simplify right side
   56,566.31x = 2,452,424,166.89
5. Step 5: Solve for x
   x = 2,452,424,166.89/56,566.31
6. Step 6: Final answer
   x = 43,354.86