Finding the Fourth Proportional to 145,314.58, 200,552.04 and 81,651

Step by Step Solution

1. Step 1: Write the proportion equation
   145,314.58 : 200,552.04 = 81,651 : x
2. Step 2: Convert to fraction form
   145,314.58/200,552.04 = 81,651/x
3. Step 3: Cross multiply
   145,314.58x = 200,552.04 × 81,651
4. Step 4: Simplify right side
   145,314.58x = 16,375,274,618.04
5. Step 5: Solve for x
   x = 16,375,274,618.04/145,314.58
6. Step 6: Final answer
   x = 112,688.45