Finding the Fourth Proportional to 28,108.50, 42,165.18 and 7,332

Step by Step Solution

1. Step 1: Write the proportion equation
   28,108.50 : 42,165.18 = 7,332 : x
2. Step 2: Convert to fraction form
   28,108.50/42,165.18 = 7,332/x
3. Step 3: Cross multiply
   28,108.50x = 42,165.18 × 7,332
4. Step 4: Simplify right side
   28,108.50x = 309,155,099.76
5. Step 5: Solve for x
   x = 309,155,099.76/28,108.50
6. Step 6: Final answer
   x = 10,998.63