Finding the Fourth Proportional to 13,108.89, 18,092.15 and 7,803.57

Step by Step Solution

1. Step 1: Write the proportion equation
   13,108.89 : 18,092.15 = 7,803.57 : x
2. Step 2: Convert to fraction form
   13,108.89/18,092.15 = 7,803.57/x
3. Step 3: Cross multiply
   13,108.89x = 18,092.15 × 7,803.57
4. Step 4: Simplify right side
   13,108.89x = 141,183,319.96
5. Step 5: Solve for x
   x = 141,183,319.96/13,108.89
6. Step 6: Final answer
   x = 10,770.04