Finding the Fourth Proportional to 9,345.63, 14,021.17 and 3,020.36

Step by Step Solution

1. Step 1: Write the proportion equation
   9,345.63 : 14,021.17 = 3,020.36 : x
2. Step 2: Convert to fraction form
   9,345.63/14,021.17 = 3,020.36/x
3. Step 3: Cross multiply
   9,345.63x = 14,021.17 × 3,020.36
4. Step 4: Simplify right side
   9,345.63x = 42,349,008.52
5. Step 5: Solve for x
   x = 42,349,008.52/9,345.63
6. Step 6: Final answer
   x = 4,531.42