Finding the Fourth Proportional to 56,549.28, 78,041.52 and 31,398.96

Step by Step Solution

1. Step 1: Write the proportion equation
   56,549.28 : 78,041.52 = 31,398.96 : x
2. Step 2: Convert to fraction form
   56,549.28/78,041.52 = 31,398.96/x
3. Step 3: Cross multiply
   56,549.28x = 78,041.52 × 31,398.96
4. Step 4: Simplify right side
   56,549.28x = 2,450,422,564.82
5. Step 5: Solve for x
   x = 2,450,422,564.82/56,549.28
6. Step 6: Final answer
   x = 43,332.52