Finding the Fourth Proportional to 109,786.42, 151,449.49 and 69,432.18

Step by Step Solution

1. Step 1: Write the proportion equation
   109,786.42 : 151,449.49 = 69,432.18 : x
2. Step 2: Convert to fraction form
   109,786.42/151,449.49 = 69,432.18/x
3. Step 3: Cross multiply
   109,786.42x = 151,449.49 × 69,432.18
4. Step 4: Simplify right side
   109,786.42x = 10,515,468,250.59
5. Step 5: Solve for x
   x = 10,515,468,250.59/109,786.42
6. Step 6: Final answer
   x = 95,781.14