Finding the Fourth Proportional to 131,069.72, 180,874.04 and 72,924.21

Step by Step Solution

1. Step 1: Write the proportion equation
   131,069.72 : 180,874.04 = 72,924.21 : x
2. Step 2: Convert to fraction form
   131,069.72/180,874.04 = 72,924.21/x
3. Step 3: Cross multiply
   131,069.72x = 180,874.04 × 72,924.21
4. Step 4: Simplify right side
   131,069.72x = 13,190,096,111.89
5. Step 5: Solve for x
   x = 13,190,096,111.89/131,069.72
6. Step 6: Final answer
   x = 100,634.20