Finding the Fourth Proportional to 56,490.02, 77,956.31 and 31,339.52

Step by Step Solution

1. Step 1: Write the proportion equation
   56,490.02 : 77,956.31 = 31,339.52 : x
2. Step 2: Convert to fraction form
   56,490.02/77,956.31 = 31,339.52/x
3. Step 3: Cross multiply
   56,490.02x = 77,956.31 × 31,339.52
4. Step 4: Simplify right side
   56,490.02x = 2,443,113,336.37
5. Step 5: Solve for x
   x = 2,443,113,336.37/56,490.02
6. Step 6: Final answer
   x = 43,248.58