Finding the Fourth Proportional to 109,626.82, 151,158.90 and 80,987.92

Step by Step Solution

1. Step 1: Write the proportion equation
   109,626.82 : 151,158.90 = 80,987.92 : x
2. Step 2: Convert to fraction form
   109,626.82/151,158.90 = 80,987.92/x
3. Step 3: Cross multiply
   109,626.82x = 151,158.90 × 80,987.92
4. Step 4: Simplify right side
   109,626.82x = 12,242,044,900.49
5. Step 5: Solve for x
   x = 12,242,044,900.49/109,626.82
6. Step 6: Final answer
   x = 111,670.16