Finding the Fourth Proportional to 123,638.67, 185,246.15 and 83,036.07

Step by Step Solution

1. Step 1: Write the proportion equation
   123,638.67 : 185,246.15 = 83,036.07 : x
2. Step 2: Convert to fraction form
   123,638.67/185,246.15 = 83,036.07/x
3. Step 3: Cross multiply
   123,638.67x = 185,246.15 × 83,036.07
4. Step 4: Simplify right side
   123,638.67x = 15,382,111,863.45
5. Step 5: Solve for x
   x = 15,382,111,863.45/123,638.67
6. Step 6: Final answer
   x = 124,411.82