Finding the Fourth Proportional to 12,445.56, 18,577.31 and 10,969.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,445.56 : 18,577.31 = 10,969.34 : x
2. Step 2: Convert to fraction form
   12,445.56/18,577.31 = 10,969.34/x
3. Step 3: Cross multiply
   12,445.56x = 18,577.31 × 10,969.34
4. Step 4: Simplify right side
   12,445.56x = 203,780,681.94
5. Step 5: Solve for x
   x = 203,780,681.94/12,445.56
6. Step 6: Final answer
   x = 16,373.77