Finding the Fourth Proportional to 112,590.97, 155,196.89 and 88,679.77

Step by Step Solution

1. Step 1: Write the proportion equation
   112,590.97 : 155,196.89 = 88,679.77 : x
2. Step 2: Convert to fraction form
   112,590.97/155,196.89 = 88,679.77/x
3. Step 3: Cross multiply
   112,590.97x = 155,196.89 × 88,679.77
4. Step 4: Simplify right side
   112,590.97x = 13,762,824,066.52
5. Step 5: Solve for x
   x = 13,762,824,066.52/112,590.97
6. Step 6: Final answer
   x = 122,237.37