Finding the Fourth Proportional to 124,695.37, 187,101.38 and 72,149.05

Step by Step Solution

1. Step 1: Write the proportion equation
   124,695.37 : 187,101.38 = 72,149.05 : x
2. Step 2: Convert to fraction form
   124,695.37/187,101.38 = 72,149.05/x
3. Step 3: Cross multiply
   124,695.37x = 187,101.38 × 72,149.05
4. Step 4: Simplify right side
   124,695.37x = 13,499,186,820.69
5. Step 5: Solve for x
   x = 13,499,186,820.69/124,695.37
6. Step 6: Final answer
   x = 108,257.32