Finding the Fourth Proportional to 11,814.30, 16,300.79 and 7,617.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,814.30 : 16,300.79 = 7,617.50 : x
2. Step 2: Convert to fraction form
   11,814.30/16,300.79 = 7,617.50/x
3. Step 3: Cross multiply
   11,814.30x = 16,300.79 × 7,617.50
4. Step 4: Simplify right side
   11,814.30x = 124,171,267.83
5. Step 5: Solve for x
   x = 124,171,267.83/11,814.30
6. Step 6: Final answer
   x = 10,510.25