Finding the Fourth Proportional to 55,895.38, 77,112.86 and 31,691.25

Step by Step Solution

1. Step 1: Write the proportion equation
   55,895.38 : 77,112.86 = 31,691.25 : x
2. Step 2: Convert to fraction form
   55,895.38/77,112.86 = 31,691.25/x
3. Step 3: Cross multiply
   55,895.38x = 77,112.86 × 31,691.25
4. Step 4: Simplify right side
   55,895.38x = 2,443,802,538.91
5. Step 5: Solve for x
   x = 2,443,802,538.91/55,895.38
6. Step 6: Final answer
   x = 43,721.02