Finding the Fourth Proportional to 19,943.72, 30,034.31 and 17,377.64

Step by Step Solution

1. Step 1: Write the proportion equation
   19,943.72 : 30,034.31 = 17,377.64 : x
2. Step 2: Convert to fraction form
   19,943.72/30,034.31 = 17,377.64/x
3. Step 3: Cross multiply
   19,943.72x = 30,034.31 × 17,377.64
4. Step 4: Simplify right side
   19,943.72x = 521,925,426.83
5. Step 5: Solve for x
   x = 521,925,426.83/19,943.72
6. Step 6: Final answer
   x = 26,169.91