Finding the Fourth Proportional to 131,019.72, 180,806.12 and 73,659.29

Step by Step Solution

1. Step 1: Write the proportion equation
   131,019.72 : 180,806.12 = 73,659.29 : x
2. Step 2: Convert to fraction form
   131,019.72/180,806.12 = 73,659.29/x
3. Step 3: Cross multiply
   131,019.72x = 180,806.12 × 73,659.29
4. Step 4: Simplify right side
   131,019.72x = 13,318,050,108.77
5. Step 5: Solve for x
   x = 13,318,050,108.77/131,019.72
6. Step 6: Final answer
   x = 101,649.20