Finding the Fourth Proportional to 149,499.82, 206,307.12 and 81,517.33

Step by Step Solution

1. Step 1: Write the proportion equation
   149,499.82 : 206,307.12 = 81,517.33 : x
2. Step 2: Convert to fraction form
   149,499.82/206,307.12 = 81,517.33/x
3. Step 3: Cross multiply
   149,499.82x = 206,307.12 × 81,517.33
4. Step 4: Simplify right side
   149,499.82x = 16,817,605,582.39
5. Step 5: Solve for x
   x = 16,817,605,582.39/149,499.82
6. Step 6: Final answer
   x = 112,492.48