Finding the Fourth Proportional to 14,301.43, 21,460.55 and 5,980.77

Step by Step Solution

1. Step 1: Write the proportion equation
   14,301.43 : 21,460.55 = 5,980.77 : x
2. Step 2: Convert to fraction form
   14,301.43/21,460.55 = 5,980.77/x
3. Step 3: Cross multiply
   14,301.43x = 21,460.55 × 5,980.77
4. Step 4: Simplify right side
   14,301.43x = 128,350,583.72
5. Step 5: Solve for x
   x = 128,350,583.72/14,301.43
6. Step 6: Final answer
   x = 8,974.67