Finding the Fourth Proportional to 12,706.75, 17,533.89 and 7,040.08

Step by Step Solution

1. Step 1: Write the proportion equation
   12,706.75 : 17,533.89 = 7,040.08 : x
2. Step 2: Convert to fraction form
   12,706.75/17,533.89 = 7,040.08/x
3. Step 3: Cross multiply
   12,706.75x = 17,533.89 × 7,040.08
4. Step 4: Simplify right side
   12,706.75x = 123,439,970.71
5. Step 5: Solve for x
   x = 123,439,970.71/12,706.75
6. Step 6: Final answer
   x = 9,714.52