Finding the Fourth Proportional to 148,646.50, 205,132.17 and 89,030.50

Step by Step Solution

1. Step 1: Write the proportion equation
   148,646.50 : 205,132.17 = 89,030.50 : x
2. Step 2: Convert to fraction form
   148,646.50/205,132.17 = 89,030.50/x
3. Step 3: Cross multiply
   148,646.50x = 205,132.17 × 89,030.50
4. Step 4: Simplify right side
   148,646.50x = 18,263,019,661.19
5. Step 5: Solve for x
   x = 18,263,019,661.19/148,646.50
6. Step 6: Final answer
   x = 122,862.09