Finding the Fourth Proportional to 123,147.72, 169,862.86 and 84,908.88

Step by Step Solution

1. Step 1: Write the proportion equation
   123,147.72 : 169,862.86 = 84,908.88 : x
2. Step 2: Convert to fraction form
   123,147.72/169,862.86 = 84,908.88/x
3. Step 3: Cross multiply
   123,147.72x = 169,862.86 × 84,908.88
4. Step 4: Simplify right side
   123,147.72x = 14,422,865,196.20
5. Step 5: Solve for x
   x = 14,422,865,196.20/123,147.72
6. Step 6: Final answer
   x = 117,118.41