Finding the Fourth Proportional to 56,650.24, 78,174.12 and 31,499.20

Step by Step Solution

1. Step 1: Write the proportion equation
   56,650.24 : 78,174.12 = 31,499.20 : x
2. Step 2: Convert to fraction form
   56,650.24/78,174.12 = 31,499.20/x
3. Step 3: Cross multiply
   56,650.24x = 78,174.12 × 31,499.20
4. Step 4: Simplify right side
   56,650.24x = 2,462,422,240.70
5. Step 5: Solve for x
   x = 2,462,422,240.70/56,650.24
6. Step 6: Final answer
   x = 43,467.11