Finding the Fourth Proportional to 12,888, 17,782.56 and 7,583.04

Step by Step Solution

1. Step 1: Write the proportion equation
   12,888 : 17,782.56 = 7,583.04 : x
2. Step 2: Convert to fraction form
   12,888/17,782.56 = 7,583.04/x
3. Step 3: Cross multiply
   12,888x = 17,782.56 × 7,583.04
4. Step 4: Simplify right side
   12,888x = 134,845,863.78
5. Step 5: Solve for x
   x = 134,845,863.78/12,888
6. Step 6: Final answer
   x = 10,462.90