Finding the Fourth Proportional to 9,789.07, 13,508.96 and 5,312.83

Step by Step Solution

1. Step 1: Write the proportion equation
   9,789.07 : 13,508.96 = 5,312.83 : x
2. Step 2: Convert to fraction form
   9,789.07/13,508.96 = 5,312.83/x
3. Step 3: Cross multiply
   9,789.07x = 13,508.96 × 5,312.83
4. Step 4: Simplify right side
   9,789.07x = 71,770,772.63
5. Step 5: Solve for x
   x = 71,770,772.63/9,789.07
6. Step 6: Final answer
   x = 7,331.72