Finding the Fourth Proportional to 11,874.52, 17,816.69 and 5,207.57

Step by Step Solution

1. Step 1: Write the proportion equation
   11,874.52 : 17,816.69 = 5,207.57 : x
2. Step 2: Convert to fraction form
   11,874.52/17,816.69 = 5,207.57/x
3. Step 3: Cross multiply
   11,874.52x = 17,816.69 × 5,207.57
4. Step 4: Simplify right side
   11,874.52x = 92,781,631.56
5. Step 5: Solve for x
   x = 92,781,631.56/11,874.52
6. Step 6: Final answer
   x = 7,813.51