Finding the Fourth Proportional to 10,856.93, 14,983.62 and 7,834.55

Step by Step Solution

1. Step 1: Write the proportion equation
   10,856.93 : 14,983.62 = 7,834.55 : x
2. Step 2: Convert to fraction form
   10,856.93/14,983.62 = 7,834.55/x
3. Step 3: Cross multiply
   10,856.93x = 14,983.62 × 7,834.55
4. Step 4: Simplify right side
   10,856.93x = 117,389,845.15
5. Step 5: Solve for x
   x = 117,389,845.15/10,856.93
6. Step 6: Final answer
   x = 10,812.44