Finding the Fourth Proportional to 56,877.52, 78,490.56 and 31,726.48

Step by Step Solution

1. Step 1: Write the proportion equation
   56,877.52 : 78,490.56 = 31,726.48 : x
2. Step 2: Convert to fraction form
   56,877.52/78,490.56 = 31,726.48/x
3. Step 3: Cross multiply
   56,877.52x = 78,490.56 × 31,726.48
4. Step 4: Simplify right side
   56,877.52x = 2,490,229,182.03
5. Step 5: Solve for x
   x = 2,490,229,182.03/56,877.52
6. Step 6: Final answer
   x = 43,782.31