Finding the Fourth Proportional to 12,445.56, 18,577.29 and 10,969.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,445.56 : 18,577.29 = 10,969.38 : x
2. Step 2: Convert to fraction form
   12,445.56/18,577.29 = 10,969.38/x
3. Step 3: Cross multiply
   12,445.56x = 18,577.29 × 10,969.38
4. Step 4: Simplify right side
   12,445.56x = 203,781,353.38
5. Step 5: Solve for x
   x = 203,781,353.38/12,445.56
6. Step 6: Final answer
   x = 16,373.82