Finding the Fourth Proportional to 9,929.63, 13,707.56 and 5,737.07

Step by Step Solution

1. Step 1: Write the proportion equation
   9,929.63 : 13,707.56 = 5,737.07 : x
2. Step 2: Convert to fraction form
   9,929.63/13,707.56 = 5,737.07/x
3. Step 3: Cross multiply
   9,929.63x = 13,707.56 × 5,737.07
4. Step 4: Simplify right side
   9,929.63x = 78,641,231.25
5. Step 5: Solve for x
   x = 78,641,231.25/9,929.63
6. Step 6: Final answer
   x = 7,919.86