Finding the Fourth Proportional to 122,753.46, 169,342.56 and 79,729.89

Step by Step Solution

1. Step 1: Write the proportion equation
   122,753.46 : 169,342.56 = 79,729.89 : x
2. Step 2: Convert to fraction form
   122,753.46/169,342.56 = 79,729.89/x
3. Step 3: Cross multiply
   122,753.46x = 169,342.56 × 79,729.89
4. Step 4: Simplify right side
   122,753.46x = 13,501,663,681.12
5. Step 5: Solve for x
   x = 13,501,663,681.12/122,753.46
6. Step 6: Final answer
   x = 109,990.09