Finding the Fourth Proportional to 9,935.61, 14,909.69 and 5,555.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,935.61 : 14,909.69 = 5,555.94 : x
2. Step 2: Convert to fraction form
   9,935.61/14,909.69 = 5,555.94/x
3. Step 3: Cross multiply
   9,935.61x = 14,909.69 × 5,555.94
4. Step 4: Simplify right side
   9,935.61x = 82,837,315.28
5. Step 5: Solve for x
   x = 82,837,315.28/9,935.61
6. Step 6: Final answer
   x = 8,337.42