Finding the Fourth Proportional to 10,607.58, 14,639.12 and 5,891.85

Step by Step Solution

1. Step 1: Write the proportion equation
   10,607.58 : 14,639.12 = 5,891.85 : x
2. Step 2: Convert to fraction form
   10,607.58/14,639.12 = 5,891.85/x
3. Step 3: Cross multiply
   10,607.58x = 14,639.12 × 5,891.85
4. Step 4: Simplify right side
   10,607.58x = 86,251,499.17
5. Step 5: Solve for x
   x = 86,251,499.17/10,607.58
6. Step 6: Final answer
   x = 8,131.12