Finding the Fourth Proportional to 12,384.62, 17,083.71 and 7,665.74

Step by Step Solution

1. Step 1: Write the proportion equation
   12,384.62 : 17,083.71 = 7,665.74 : x
2. Step 2: Convert to fraction form
   12,384.62/17,083.71 = 7,665.74/x
3. Step 3: Cross multiply
   12,384.62x = 17,083.71 × 7,665.74
4. Step 4: Simplify right side
   12,384.62x = 130,959,279.10
5. Step 5: Solve for x
   x = 130,959,279.10/12,384.62
6. Step 6: Final answer
   x = 10,574.35