Finding the Fourth Proportional to 131,667.12, 181,687.46 and 74,301.30

Step by Step Solution

1. Step 1: Write the proportion equation
   131,667.12 : 181,687.46 = 74,301.30 : x
2. Step 2: Convert to fraction form
   131,667.12/181,687.46 = 74,301.30/x
3. Step 3: Cross multiply
   131,667.12x = 181,687.46 × 74,301.30
4. Step 4: Simplify right side
   131,667.12x = 13,499,614,100.19
5. Step 5: Solve for x
   x = 13,499,614,100.19/131,667.12
6. Step 6: Final answer
   x = 102,528.36