Finding the Fourth Proportional to 109,626.32, 151,158.21 and 80,987.42

Step by Step Solution

1. Step 1: Write the proportion equation
   109,626.32 : 151,158.21 = 80,987.42 : x
2. Step 2: Convert to fraction form
   109,626.32/151,158.21 = 80,987.42/x
3. Step 3: Cross multiply
   109,626.32x = 151,158.21 × 80,987.42
4. Step 4: Simplify right side
   109,626.32x = 12,241,913,439.72
5. Step 5: Solve for x
   x = 12,241,913,439.72/109,626.32
6. Step 6: Final answer
   x = 111,669.47