Finding the Fourth Proportional to 57,084.18, 78,774.22 and 31,591.62

Step by Step Solution

1. Step 1: Write the proportion equation
   57,084.18 : 78,774.22 = 31,591.62 : x
2. Step 2: Convert to fraction form
   57,084.18/78,774.22 = 31,591.62/x
3. Step 3: Cross multiply
   57,084.18x = 78,774.22 × 31,591.62
4. Step 4: Simplify right side
   57,084.18x = 2,488,605,224.04
5. Step 5: Solve for x
   x = 2,488,605,224.04/57,084.18
6. Step 6: Final answer
   x = 43,595.36