Finding the Fourth Proportional to 146,300.31, 201,891.79 and 81,770.61

Step by Step Solution

1. Step 1: Write the proportion equation
   146,300.31 : 201,891.79 = 81,770.61 : x
2. Step 2: Convert to fraction form
   146,300.31/201,891.79 = 81,770.61/x
3. Step 3: Cross multiply
   146,300.31x = 201,891.79 × 81,770.61
4. Step 4: Simplify right side
   146,300.31x = 16,508,815,681.60
5. Step 5: Solve for x
   x = 16,508,815,681.60/146,300.31
6. Step 6: Final answer
   x = 112,841.97