Finding the Fourth Proportional to 9,953.94, 14,931.72 and 2,838.09

Step by Step Solution

1. Step 1: Write the proportion equation
   9,953.94 : 14,931.72 = 2,838.09 : x
2. Step 2: Convert to fraction form
   9,953.94/14,931.72 = 2,838.09/x
3. Step 3: Cross multiply
   9,953.94x = 14,931.72 × 2,838.09
4. Step 4: Simplify right side
   9,953.94x = 42,377,565.21
5. Step 5: Solve for x
   x = 42,377,565.21/9,953.94
6. Step 6: Final answer
   x = 4,257.37