Finding the Fourth Proportional to 9,815.76, 14,699.88 and 5,911.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,815.76 : 14,699.88 = 5,911.56 : x
2. Step 2: Convert to fraction form
   9,815.76/14,699.88 = 5,911.56/x
3. Step 3: Cross multiply
   9,815.76x = 14,699.88 × 5,911.56
4. Step 4: Simplify right side
   9,815.76x = 86,899,222.61
5. Step 5: Solve for x
   x = 86,899,222.61/9,815.76
6. Step 6: Final answer
   x = 8,853.03