Finding the Fourth Proportional to 109,684.48, 151,417.20 and 69,417.76

Step by Step Solution

1. Step 1: Write the proportion equation
   109,684.48 : 151,417.20 = 69,417.76 : x
2. Step 2: Convert to fraction form
   109,684.48/151,417.20 = 69,417.76/x
3. Step 3: Cross multiply
   109,684.48x = 151,417.20 × 69,417.76
4. Step 4: Simplify right side
   109,684.48x = 10,511,042,849.47
5. Step 5: Solve for x
   x = 10,511,042,849.47/109,684.48
6. Step 6: Final answer
   x = 95,829.81