Finding the Fourth Proportional to 56,649.14, 78,174.27 and 31,155.52

Step by Step Solution

1. Step 1: Write the proportion equation
   56,649.14 : 78,174.27 = 31,155.52 : x
2. Step 2: Convert to fraction form
   56,649.14/78,174.27 = 31,155.52/x
3. Step 3: Cross multiply
   56,649.14x = 78,174.27 × 31,155.52
4. Step 4: Simplify right side
   56,649.14x = 2,435,560,032.47
5. Step 5: Solve for x
   x = 2,435,560,032.47/56,649.14
6. Step 6: Final answer
   x = 42,993.77