Finding the Fourth Proportional to 123,616.38, 185,233.74 and 83,478.08

Step by Step Solution

1. Step 1: Write the proportion equation
   123,616.38 : 185,233.74 = 83,478.08 : x
2. Step 2: Convert to fraction form
   123,616.38/185,233.74 = 83,478.08/x
3. Step 3: Cross multiply
   123,616.38x = 185,233.74 × 83,478.08
4. Step 4: Simplify right side
   123,616.38x = 15,462,956,966.42
5. Step 5: Solve for x
   x = 15,462,956,966.42/123,616.38
6. Step 6: Final answer
   x = 125,088.25