Finding the Fourth Proportional to 10,836.25, 14,955.13 and 7,813.86

Step by Step Solution

1. Step 1: Write the proportion equation
   10,836.25 : 14,955.13 = 7,813.86 : x
2. Step 2: Convert to fraction form
   10,836.25/14,955.13 = 7,813.86/x
3. Step 3: Cross multiply
   10,836.25x = 14,955.13 × 7,813.86
4. Step 4: Simplify right side
   10,836.25x = 116,857,292.10
5. Step 5: Solve for x
   x = 116,857,292.10/10,836.25
6. Step 6: Final answer
   x = 10,783.92