Finding the Fourth Proportional to 11,868.21, 17,789.94 and 5,299.02

Step by Step Solution

1. Step 1: Write the proportion equation
   11,868.21 : 17,789.94 = 5,299.02 : x
2. Step 2: Convert to fraction form
   11,868.21/17,789.94 = 5,299.02/x
3. Step 3: Cross multiply
   11,868.21x = 17,789.94 × 5,299.02
4. Step 4: Simplify right side
   11,868.21x = 94,269,247.86
5. Step 5: Solve for x
   x = 94,269,247.86/11,868.21
6. Step 6: Final answer
   x = 7,943.00