Finding the Fourth Proportional to 149,714.73, 206,586.72 and 89,292.47

Step by Step Solution

1. Step 1: Write the proportion equation
   149,714.73 : 206,586.72 = 89,292.47 : x
2. Step 2: Convert to fraction form
   149,714.73/206,586.72 = 89,292.47/x
3. Step 3: Cross multiply
   149,714.73x = 206,586.72 × 89,292.47
4. Step 4: Simplify right side
   149,714.73x = 18,446,638,498.00
5. Step 5: Solve for x
   x = 18,446,638,498.00/149,714.73
6. Step 6: Final answer
   x = 123,211.91