Finding the Fourth Proportional to 12,801.60, 17,664.48 and 7,498.14

Step by Step Solution

1. Step 1: Write the proportion equation
   12,801.60 : 17,664.48 = 7,498.14 : x
2. Step 2: Convert to fraction form
   12,801.60/17,664.48 = 7,498.14/x
3. Step 3: Cross multiply
   12,801.60x = 17,664.48 × 7,498.14
4. Step 4: Simplify right side
   12,801.60x = 132,450,744.07
5. Step 5: Solve for x
   x = 132,450,744.07/12,801.60
6. Step 6: Final answer
   x = 10,346.42