Finding the Fourth Proportional to 123,579.24, 185,444.16 and 113,541.72

Step by Step Solution

1. Step 1: Write the proportion equation
   123,579.24 : 185,444.16 = 113,541.72 : x
2. Step 2: Convert to fraction form
   123,579.24/185,444.16 = 113,541.72/x
3. Step 3: Cross multiply
   123,579.24x = 185,444.16 × 113,541.72
4. Step 4: Simplify right side
   123,579.24x = 21,055,648,890.36
5. Step 5: Solve for x
   x = 21,055,648,890.36/123,579.24
6. Step 6: Final answer
   x = 170,381.76