Finding the Fourth Proportional to 85,227.59, 127,184.58 and 74,861.21

Step by Step Solution

1. Step 1: Write the proportion equation
   85,227.59 : 127,184.58 = 74,861.21 : x
2. Step 2: Convert to fraction form
   85,227.59/127,184.58 = 74,861.21/x
3. Step 3: Cross multiply
   85,227.59x = 127,184.58 × 74,861.21
4. Step 4: Simplify right side
   85,227.59x = 9,521,191,870.10
5. Step 5: Solve for x
   x = 9,521,191,870.10/85,227.59
6. Step 6: Final answer
   x = 111,714.90