Finding the Fourth Proportional to 12,158.61, 16,770.56 and 7,445.22

Step by Step Solution

1. Step 1: Write the proportion equation
   12,158.61 : 16,770.56 = 7,445.22 : x
2. Step 2: Convert to fraction form
   12,158.61/16,770.56 = 7,445.22/x
3. Step 3: Cross multiply
   12,158.61x = 16,770.56 × 7,445.22
4. Step 4: Simplify right side
   12,158.61x = 124,860,471.50
5. Step 5: Solve for x
   x = 124,860,471.50/12,158.61
6. Step 6: Final answer
   x = 10,269.30