Finding the Fourth Proportional to 17,606.10, 26,406.42 and 5,123.58

Step by Step Solution

1. Step 1: Write the proportion equation
   17,606.10 : 26,406.42 = 5,123.58 : x
2. Step 2: Convert to fraction form
   17,606.10/26,406.42 = 5,123.58/x
3. Step 3: Cross multiply
   17,606.10x = 26,406.42 × 5,123.58
4. Step 4: Simplify right side
   17,606.10x = 135,295,405.38
5. Step 5: Solve for x
   x = 135,295,405.38/17,606.10
6. Step 6: Final answer
   x = 7,684.58