Finding the Fourth Proportional to 89,898.51, 124,106.59 and 65,672.27

Step by Step Solution

1. Step 1: Write the proportion equation
   89,898.51 : 124,106.59 = 65,672.27 : x
2. Step 2: Convert to fraction form
   89,898.51/124,106.59 = 65,672.27/x
3. Step 3: Cross multiply
   89,898.51x = 124,106.59 × 65,672.27
4. Step 4: Simplify right side
   89,898.51x = 8,150,361,414.22
5. Step 5: Solve for x
   x = 8,150,361,414.22/89,898.51
6. Step 6: Final answer
   x = 90,661.80