Finding the Fourth Proportional to 109,945.20, 151,740.69 and 69,662.73

Step by Step Solution

1. Step 1: Write the proportion equation
   109,945.20 : 151,740.69 = 69,662.73 : x
2. Step 2: Convert to fraction form
   109,945.20/151,740.69 = 69,662.73/x
3. Step 3: Cross multiply
   109,945.20x = 151,740.69 × 69,662.73
4. Step 4: Simplify right side
   109,945.20x = 10,570,671,417.13
5. Step 5: Solve for x
   x = 10,570,671,417.13/109,945.20
6. Step 6: Final answer
   x = 96,144.91