Finding the Fourth Proportional to 9,890.91, 14,838.59 and 3,316.93

Step by Step Solution

1. Step 1: Write the proportion equation
   9,890.91 : 14,838.59 = 3,316.93 : x
2. Step 2: Convert to fraction form
   9,890.91/14,838.59 = 3,316.93/x
3. Step 3: Cross multiply
   9,890.91x = 14,838.59 × 3,316.93
4. Step 4: Simplify right side
   9,890.91x = 49,218,535.52
5. Step 5: Solve for x
   x = 49,218,535.52/9,890.91
6. Step 6: Final answer
   x = 4,976.14