Finding the Fourth Proportional to 109,407.92, 150,983.34 and 69,139.58

Step by Step Solution

1. Step 1: Write the proportion equation
   109,407.92 : 150,983.34 = 69,139.58 : x
2. Step 2: Convert to fraction form
   109,407.92/150,983.34 = 69,139.58/x
3. Step 3: Cross multiply
   109,407.92x = 150,983.34 × 69,139.58
4. Step 4: Simplify right side
   109,407.92x = 10,438,924,714.60
5. Step 5: Solve for x
   x = 10,438,924,714.60/109,407.92
6. Step 6: Final answer
   x = 95,412.88