Finding the Fourth Proportional to 9,128.51, 13,665.02 and 5,843.91

Step by Step Solution

1. Step 1: Write the proportion equation
   9,128.51 : 13,665.02 = 5,843.91 : x
2. Step 2: Convert to fraction form
   9,128.51/13,665.02 = 5,843.91/x
3. Step 3: Cross multiply
   9,128.51x = 13,665.02 × 5,843.91
4. Step 4: Simplify right side
   9,128.51x = 79,857,201.92
5. Step 5: Solve for x
   x = 79,857,201.92/9,128.51
6. Step 6: Final answer
   x = 8,748.10