Finding the Fourth Proportional to 45,580.71, 68,348.55 and 13,983.21

Step by Step Solution

1. Step 1: Write the proportion equation
   45,580.71 : 68,348.55 = 13,983.21 : x
2. Step 2: Convert to fraction form
   45,580.71/68,348.55 = 13,983.21/x
3. Step 3: Cross multiply
   45,580.71x = 68,348.55 × 13,983.21
4. Step 4: Simplify right side
   45,580.71x = 955,732,127.85
5. Step 5: Solve for x
   x = 955,732,127.85/45,580.71
6. Step 6: Final answer
   x = 20,967.91