Finding the Fourth Proportional to 114,648.72, 171,730.80 and 72,507.12

Step by Step Solution

1. Step 1: Write the proportion equation
   114,648.72 : 171,730.80 = 72,507.12 : x
2. Step 2: Convert to fraction form
   114,648.72/171,730.80 = 72,507.12/x
3. Step 3: Cross multiply
   114,648.72x = 171,730.80 × 72,507.12
4. Step 4: Simplify right side
   114,648.72x = 12,451,705,723.30
5. Step 5: Solve for x
   x = 12,451,705,723.30/114,648.72
6. Step 6: Final answer
   x = 108,607.46