Finding the Fourth Proportional to 12,859.55, 17,746.31 and 7,554.59

Step by Step Solution

1. Step 1: Write the proportion equation
   12,859.55 : 17,746.31 = 7,554.59 : x
2. Step 2: Convert to fraction form
   12,859.55/17,746.31 = 7,554.59/x
3. Step 3: Cross multiply
   12,859.55x = 17,746.31 × 7,554.59
4. Step 4: Simplify right side
   12,859.55x = 134,066,096.06
5. Step 5: Solve for x
   x = 134,066,096.06/12,859.55
6. Step 6: Final answer
   x = 10,425.41