Finding the Fourth Proportional to 76,085.18, 114,167.57 and 31,139.90

Step by Step Solution

1. Step 1: Write the proportion equation
   76,085.18 : 114,167.57 = 31,139.90 : x
2. Step 2: Convert to fraction form
   76,085.18/114,167.57 = 31,139.90/x
3. Step 3: Cross multiply
   76,085.18x = 114,167.57 × 31,139.90
4. Step 4: Simplify right side
   76,085.18x = 3,555,166,713.04
5. Step 5: Solve for x
   x = 3,555,166,713.04/76,085.18
6. Step 6: Final answer
   x = 46,726.14