Finding the Fourth Proportional to 12,859.58, 17,746.73 and 7,554.35

Step by Step Solution

1. Step 1: Write the proportion equation
   12,859.58 : 17,746.73 = 7,554.35 : x
2. Step 2: Convert to fraction form
   12,859.58/17,746.73 = 7,554.35/x
3. Step 3: Cross multiply
   12,859.58x = 17,746.73 × 7,554.35
4. Step 4: Simplify right side
   12,859.58x = 134,065,044.70
5. Step 5: Solve for x
   x = 134,065,044.70/12,859.58
6. Step 6: Final answer
   x = 10,425.30