Finding the Fourth Proportional to 11,880.72, 17,802.59 and 4,481.13

Step by Step Solution

1. Step 1: Write the proportion equation
   11,880.72 : 17,802.59 = 4,481.13 : x
2. Step 2: Convert to fraction form
   11,880.72/17,802.59 = 4,481.13/x
3. Step 3: Cross multiply
   11,880.72x = 17,802.59 × 4,481.13
4. Step 4: Simplify right side
   11,880.72x = 79,775,731.33
5. Step 5: Solve for x
   x = 79,775,731.33/11,880.72
6. Step 6: Final answer
   x = 6,714.72