Finding the Fourth Proportional to 149,443.68, 206,228.17 and 81,461.98

Step by Step Solution

1. Step 1: Write the proportion equation
   149,443.68 : 206,228.17 = 81,461.98 : x
2. Step 2: Convert to fraction form
   149,443.68/206,228.17 = 81,461.98/x
3. Step 3: Cross multiply
   149,443.68x = 206,228.17 × 81,461.98
4. Step 4: Simplify right side
   149,443.68x = 16,799,755,059.98
5. Step 5: Solve for x
   x = 16,799,755,059.98/149,443.68
6. Step 6: Final answer
   x = 112,415.29