Finding the Fourth Proportional to 8,012.72, 10,998.70 and 7,108.76

Step by Step Solution

1. Step 1: Write the proportion equation
   8,012.72 : 10,998.70 = 7,108.76 : x
2. Step 2: Convert to fraction form
   8,012.72/10,998.70 = 7,108.76/x
3. Step 3: Cross multiply
   8,012.72x = 10,998.70 × 7,108.76
4. Step 4: Simplify right side
   8,012.72x = 78,187,118.61
5. Step 5: Solve for x
   x = 78,187,118.61/8,012.72
6. Step 6: Final answer
   x = 9,757.87