Finding the Fourth Proportional to 9,370.72, 14,051.49 and 3,128.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,370.72 : 14,051.49 = 3,128.59 : x
2. Step 2: Convert to fraction form
   9,370.72/14,051.49 = 3,128.59/x
3. Step 3: Cross multiply
   9,370.72x = 14,051.49 × 3,128.59
4. Step 4: Simplify right side
   9,370.72x = 43,961,351.10
5. Step 5: Solve for x
   x = 43,961,351.10/9,370.72
6. Step 6: Final answer
   x = 4,691.35