Finding the Fourth Proportional to 12,519.48, 17,288.60 and 8,051.00

Step by Step Solution

1. Step 1: Write the proportion equation
   12,519.48 : 17,288.60 = 8,051.00 : x
2. Step 2: Convert to fraction form
   12,519.48/17,288.60 = 8,051.00/x
3. Step 3: Cross multiply
   12,519.48x = 17,288.60 × 8,051.00
4. Step 4: Simplify right side
   12,519.48x = 139,190,391.90
5. Step 5: Solve for x
   x = 139,190,391.90/12,519.48
6. Step 6: Final answer
   x = 11,117.90