Finding the Fourth Proportional to 56,686.75, 78,227.72 and 31,536.25

Step by Step Solution

1. Step 1: Write the proportion equation
   56,686.75 : 78,227.72 = 31,536.25 : x
2. Step 2: Convert to fraction form
   56,686.75/78,227.72 = 31,536.25/x
3. Step 3: Cross multiply
   56,686.75x = 78,227.72 × 31,536.25
4. Step 4: Simplify right side
   56,686.75x = 2,467,008,934.85
5. Step 5: Solve for x
   x = 2,467,008,934.85/56,686.75
6. Step 6: Final answer
   x = 43,520.03