Finding the Fourth Proportional to 75,123.72, 112,700.72 and 27,739.12

Step by Step Solution

1. Step 1: Write the proportion equation
   75,123.72 : 112,700.72 = 27,739.12 : x
2. Step 2: Convert to fraction form
   75,123.72/112,700.72 = 27,739.12/x
3. Step 3: Cross multiply
   75,123.72x = 112,700.72 × 27,739.12
4. Step 4: Simplify right side
   75,123.72x = 3,126,218,796.17
5. Step 5: Solve for x
   x = 3,126,218,796.17/75,123.72
6. Step 6: Final answer
   x = 41,614.27