Finding the Fourth Proportional to 10,607.31, 14,638.59 and 5,891.61

Step by Step Solution

1. Step 1: Write the proportion equation
   10,607.31 : 14,638.59 = 5,891.61 : x
2. Step 2: Convert to fraction form
   10,607.31/14,638.59 = 5,891.61/x
3. Step 3: Cross multiply
   10,607.31x = 14,638.59 × 5,891.61
4. Step 4: Simplify right side
   10,607.31x = 86,244,863.23
5. Step 5: Solve for x
   x = 86,244,863.23/10,607.31
6. Step 6: Final answer
   x = 8,130.70