Finding the Fourth Proportional to 87,045.27, 119,340.18 and 85,470.63

Step by Step Solution

1. Step 1: Write the proportion equation
   87,045.27 : 119,340.18 = 85,470.63 : x
2. Step 2: Convert to fraction form
   87,045.27/119,340.18 = 85,470.63/x
3. Step 3: Cross multiply
   87,045.27x = 119,340.18 × 85,470.63
4. Step 4: Simplify right side
   87,045.27x = 10,200,079,941.56
5. Step 5: Solve for x
   x = 10,200,079,941.56/87,045.27
6. Step 6: Final answer
   x = 117,181.32