Finding the Fourth Proportional to 58,087.31, 87,049.86 and 31,375.71

Step by Step Solution

1. Step 1: Write the proportion equation
   58,087.31 : 87,049.86 = 31,375.71 : x
2. Step 2: Convert to fraction form
   58,087.31/87,049.86 = 31,375.71/x
3. Step 3: Cross multiply
   58,087.31x = 87,049.86 × 31,375.71
4. Step 4: Simplify right side
   58,087.31x = 2,731,251,162.90
5. Step 5: Solve for x
   x = 2,731,251,162.90/58,087.31
6. Step 6: Final answer
   x = 47,019.76