Finding the Fourth Proportional to 17,478.38, 26,221.71 and 7,619.42

Step by Step Solution

1. Step 1: Write the proportion equation
   17,478.38 : 26,221.71 = 7,619.42 : x
2. Step 2: Convert to fraction form
   17,478.38/26,221.71 = 7,619.42/x
3. Step 3: Cross multiply
   17,478.38x = 26,221.71 × 7,619.42
4. Step 4: Simplify right side
   17,478.38x = 199,794,221.61
5. Step 5: Solve for x
   x = 199,794,221.61/17,478.38
6. Step 6: Final answer
   x = 11,430.93