Finding the Fourth Proportional to 56,875.48, 78,488.96 and 31,382.96

Step by Step Solution

1. Step 1: Write the proportion equation
   56,875.48 : 78,488.96 = 31,382.96 : x
2. Step 2: Convert to fraction form
   56,875.48/78,488.96 = 31,382.96/x
3. Step 3: Cross multiply
   56,875.48x = 78,488.96 × 31,382.96
4. Step 4: Simplify right side
   56,875.48x = 2,463,215,892.12
5. Step 5: Solve for x
   x = 2,463,215,892.12/56,875.48
6. Step 6: Final answer
   x = 43,308.92