Finding the Fourth Proportional to 56,603.24, 78,108.90 and 31,451.24

Step by Step Solution

1. Step 1: Write the proportion equation
   56,603.24 : 78,108.90 = 31,451.24 : x
2. Step 2: Convert to fraction form
   56,603.24/78,108.90 = 31,451.24/x
3. Step 3: Cross multiply
   56,603.24x = 78,108.90 × 31,451.24
4. Step 4: Simplify right side
   56,603.24x = 2,456,621,760.04
5. Step 5: Solve for x
   x = 2,456,621,760.04/56,603.24
6. Step 6: Final answer
   x = 43,400.73