Finding the Fourth Proportional to 216,662.13, 325,106.53 and 88,673.42

Step by Step Solution

1. Step 1: Write the proportion equation
   216,662.13 : 325,106.53 = 88,673.42 : x
2. Step 2: Convert to fraction form
   216,662.13/325,106.53 = 88,673.42/x
3. Step 3: Cross multiply
   216,662.13x = 325,106.53 × 88,673.42
4. Step 4: Simplify right side
   216,662.13x = 28,828,308,470.52
5. Step 5: Solve for x
   x = 28,828,308,470.52/216,662.13
6. Step 6: Final answer
   x = 133,056.52