Finding the Fourth Proportional to 108,215.76, 162,156.18 and 75,000.69

Step by Step Solution

1. Step 1: Write the proportion equation
   108,215.76 : 162,156.18 = 75,000.69 : x
2. Step 2: Convert to fraction form
   108,215.76/162,156.18 = 75,000.69/x
3. Step 3: Cross multiply
   108,215.76x = 162,156.18 × 75,000.69
4. Step 4: Simplify right side
   108,215.76x = 12,161,825,387.76
5. Step 5: Solve for x
   x = 12,161,825,387.76/108,215.76
6. Step 6: Final answer
   x = 112,384.97