Finding the Fourth Proportional to 10,388.22, 14,335.47 and 5,672.58

Step by Step Solution

1. Step 1: Write the proportion equation
   10,388.22 : 14,335.47 = 5,672.58 : x
2. Step 2: Convert to fraction form
   10,388.22/14,335.47 = 5,672.58/x
3. Step 3: Cross multiply
   10,388.22x = 14,335.47 × 5,672.58
4. Step 4: Simplify right side
   10,388.22x = 81,319,100.41
5. Step 5: Solve for x
   x = 81,319,100.41/10,388.22
6. Step 6: Final answer
   x = 7,828.01