Finding the Fourth Proportional to 12,547.82, 17,323.50 and 7,838.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,547.82 : 17,323.50 = 7,838.48 : x
2. Step 2: Convert to fraction form
   12,547.82/17,323.50 = 7,838.48/x
3. Step 3: Cross multiply
   12,547.82x = 17,323.50 × 7,838.48
4. Step 4: Simplify right side
   12,547.82x = 135,789,980.98
5. Step 5: Solve for x
   x = 135,789,980.98/12,547.82
6. Step 6: Final answer
   x = 10,821.80