Finding the Fourth Proportional to 56,876.58, 78,490.52 and 31,382.54

Step by Step Solution

1. Step 1: Write the proportion equation
   56,876.58 : 78,490.52 = 31,382.54 : x
2. Step 2: Convert to fraction form
   56,876.58/78,490.52 = 31,382.54/x
3. Step 3: Cross multiply
   56,876.58x = 78,490.52 × 31,382.54
4. Step 4: Simplify right side
   56,876.58x = 2,463,231,746.18
5. Step 5: Solve for x
   x = 2,463,231,746.18/56,876.58
6. Step 6: Final answer
   x = 43,308.37