Finding the Fourth Proportional to 11,872.80, 17,815.32 and 5,303.34

Step by Step Solution

1. Step 1: Write the proportion equation
   11,872.80 : 17,815.32 = 5,303.34 : x
2. Step 2: Convert to fraction form
   11,872.80/17,815.32 = 5,303.34/x
3. Step 3: Cross multiply
   11,872.80x = 17,815.32 × 5,303.34
4. Step 4: Simplify right side
   11,872.80x = 94,480,699.17
5. Step 5: Solve for x
   x = 94,480,699.17/11,872.80
6. Step 6: Final answer
   x = 7,957.74