Finding the Fourth Proportional to 109,090.32, 150,508.48 and 88,912.56

Step by Step Solution

1. Step 1: Write the proportion equation
   109,090.32 : 150,508.48 = 88,912.56 : x
2. Step 2: Convert to fraction form
   109,090.32/150,508.48 = 88,912.56/x
3. Step 3: Cross multiply
   109,090.32x = 150,508.48 × 88,912.56
4. Step 4: Simplify right side
   109,090.32x = 13,382,094,258.51
5. Step 5: Solve for x
   x = 13,382,094,258.51/109,090.32
6. Step 6: Final answer
   x = 122,669.86