Finding the Fourth Proportional to 123,603.60, 185,392.56 and 83,877.60

Step by Step Solution

1. Step 1: Write the proportion equation
   123,603.60 : 185,392.56 = 83,877.60 : x
2. Step 2: Convert to fraction form
   123,603.60/185,392.56 = 83,877.60/x
3. Step 3: Cross multiply
   123,603.60x = 185,392.56 × 83,877.60
4. Step 4: Simplify right side
   123,603.60x = 15,550,282,990.66
5. Step 5: Solve for x
   x = 15,550,282,990.66/123,603.60
6. Step 6: Final answer
   x = 125,807.69