Finding the Fourth Proportional to 58,196.94, 87,333.72 and 31,920.15

Step by Step Solution

1. Step 1: Write the proportion equation
   58,196.94 : 87,333.72 = 31,920.15 : x
2. Step 2: Convert to fraction form
   58,196.94/87,333.72 = 31,920.15/x
3. Step 3: Cross multiply
   58,196.94x = 87,333.72 × 31,920.15
4. Step 4: Simplify right side
   58,196.94x = 2,787,705,442.46
5. Step 5: Solve for x
   x = 2,787,705,442.46/58,196.94
6. Step 6: Final answer
   x = 47,901.24