Finding the Fourth Proportional to 109,279.68, 150,813.12 and 82,374.72

Step by Step Solution

1. Step 1: Write the proportion equation
   109,279.68 : 150,813.12 = 82,374.72 : x
2. Step 2: Convert to fraction form
   109,279.68/150,813.12 = 82,374.72/x
3. Step 3: Cross multiply
   109,279.68x = 150,813.12 × 82,374.72
4. Step 4: Simplify right side
   109,279.68x = 12,423,188,532.33
5. Step 5: Solve for x
   x = 12,423,188,532.33/109,279.68
6. Step 6: Final answer
   x = 113,682.51