Finding the Fourth Proportional to 10,864.86, 16,291.53 and 4,705.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,864.86 : 16,291.53 = 4,705.50 : x
2. Step 2: Convert to fraction form
   10,864.86/16,291.53 = 4,705.50/x
3. Step 3: Cross multiply
   10,864.86x = 16,291.53 × 4,705.50
4. Step 4: Simplify right side
   10,864.86x = 76,659,794.42
5. Step 5: Solve for x
   x = 76,659,794.42/10,864.86
6. Step 6: Final answer
   x = 7,055.76