Finding the Fourth Proportional to 124,146.37, 171,296.04 and 81,188.83

Step by Step Solution

1. Step 1: Write the proportion equation
   124,146.37 : 171,296.04 = 81,188.83 : x
2. Step 2: Convert to fraction form
   124,146.37/171,296.04 = 81,188.83/x
3. Step 3: Cross multiply
   124,146.37x = 171,296.04 × 81,188.83
4. Step 4: Simplify right side
   124,146.37x = 13,907,325,071.23
5. Step 5: Solve for x
   x = 13,907,325,071.23/124,146.37
6. Step 6: Final answer
   x = 112,023.61