Finding the Fourth Proportional to 10,784.10, 14,844.15 and 9,646.86

Step by Step Solution

1. Step 1: Write the proportion equation
   10,784.10 : 14,844.15 = 9,646.86 : x
2. Step 2: Convert to fraction form
   10,784.10/14,844.15 = 9,646.86/x
3. Step 3: Cross multiply
   10,784.10x = 14,844.15 × 9,646.86
4. Step 4: Simplify right side
   10,784.10x = 143,199,436.87
5. Step 5: Solve for x
   x = 143,199,436.87/10,784.10
6. Step 6: Final answer
   x = 13,278.76