Finding the Fourth Proportional to 38,985.34, 58,471.52 and 14,020.34

Step by Step Solution

1. Step 1: Write the proportion equation
   38,985.34 : 58,471.52 = 14,020.34 : x
2. Step 2: Convert to fraction form
   38,985.34/58,471.52 = 14,020.34/x
3. Step 3: Cross multiply
   38,985.34x = 58,471.52 × 14,020.34
4. Step 4: Simplify right side
   38,985.34x = 819,790,590.72
5. Step 5: Solve for x
   x = 819,790,590.72/38,985.34
6. Step 6: Final answer
   x = 21,028.18