Finding the Fourth Proportional to 10,513.89, 14,510.19 and 7,856.70

Step by Step Solution

1. Step 1: Write the proportion equation
   10,513.89 : 14,510.19 = 7,856.70 : x
2. Step 2: Convert to fraction form
   10,513.89/14,510.19 = 7,856.70/x
3. Step 3: Cross multiply
   10,513.89x = 14,510.19 × 7,856.70
4. Step 4: Simplify right side
   10,513.89x = 114,002,209.77
5. Step 5: Solve for x
   x = 114,002,209.77/10,513.89
6. Step 6: Final answer
   x = 10,843.01