Finding the Fourth Proportional to 17,942.31, 26,904.42 and 5,459.94

Step by Step Solution

1. Step 1: Write the proportion equation
   17,942.31 : 26,904.42 = 5,459.94 : x
2. Step 2: Convert to fraction form
   17,942.31/26,904.42 = 5,459.94/x
3. Step 3: Cross multiply
   17,942.31x = 26,904.42 × 5,459.94
4. Step 4: Simplify right side
   17,942.31x = 146,896,518.93
5. Step 5: Solve for x
   x = 146,896,518.93/17,942.31
6. Step 6: Final answer
   x = 8,187.16