Finding the Fourth Proportional to 56,875.97, 78,488.70 and 31,382.54

Step by Step Solution

1. Step 1: Write the proportion equation
   56,875.97 : 78,488.70 = 31,382.54 : x
2. Step 2: Convert to fraction form
   56,875.97/78,488.70 = 31,382.54/x
3. Step 3: Cross multiply
   56,875.97x = 78,488.70 × 31,382.54
4. Step 4: Simplify right side
   56,875.97x = 2,463,174,551.50
5. Step 5: Solve for x
   x = 2,463,174,551.50/56,875.97
6. Step 6: Final answer
   x = 43,307.82