Finding the Fourth Proportional to 12,830.42, 17,706.05 and 7,525.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,830.42 : 17,706.05 = 7,525.34 : x
2. Step 2: Convert to fraction form
   12,830.42/17,706.05 = 7,525.34/x
3. Step 3: Cross multiply
   12,830.42x = 17,706.05 × 7,525.34
4. Step 4: Simplify right side
   12,830.42x = 133,244,046.31
5. Step 5: Solve for x
   x = 133,244,046.31/12,830.42
6. Step 6: Final answer
   x = 10,385.01