Finding the Fourth Proportional to 56,686.55, 78,227.52 and 31,536.05

Step by Step Solution

1. Step 1: Write the proportion equation
   56,686.55 : 78,227.52 = 31,536.05 : x
2. Step 2: Convert to fraction form
   56,686.55/78,227.52 = 31,536.05/x
3. Step 3: Cross multiply
   56,686.55x = 78,227.52 × 31,536.05
4. Step 4: Simplify right side
   56,686.55x = 2,466,986,982.10
5. Step 5: Solve for x
   x = 2,466,986,982.10/56,686.55
6. Step 6: Final answer
   x = 43,519.79