Finding the Fourth Proportional to 123,099.90, 169,765.10 and 80,681.82

Step by Step Solution

1. Step 1: Write the proportion equation
   123,099.90 : 169,765.10 = 80,681.82 : x
2. Step 2: Convert to fraction form
   123,099.90/169,765.10 = 80,681.82/x
3. Step 3: Cross multiply
   123,099.90x = 169,765.10 × 80,681.82
4. Step 4: Simplify right side
   123,099.90x = 13,696,956,837.07
5. Step 5: Solve for x
   x = 13,696,956,837.07/123,099.90
6. Step 6: Final answer
   x = 111,267.00