Finding the Fourth Proportional to 7,605.20, 10,488.62 and 7,162.34

Step by Step Solution

1. Step 1: Write the proportion equation
   7,605.20 : 10,488.62 = 7,162.34 : x
2. Step 2: Convert to fraction form
   7,605.20/10,488.62 = 7,162.34/x
3. Step 3: Cross multiply
   7,605.20x = 10,488.62 × 7,162.34
4. Step 4: Simplify right side
   7,605.20x = 75,123,026.76
5. Step 5: Solve for x
   x = 75,123,026.76/7,605.20
6. Step 6: Final answer
   x = 9,877.85