Finding the Fourth Proportional to 7,898.06, 10,877.16 and 7,725.82

Step by Step Solution

1. Step 1: Write the proportion equation
   7,898.06 : 10,877.16 = 7,725.82 : x
2. Step 2: Convert to fraction form
   7,898.06/10,877.16 = 7,725.82/x
3. Step 3: Cross multiply
   7,898.06x = 10,877.16 × 7,725.82
4. Step 4: Simplify right side
   7,898.06x = 84,034,980.27
5. Step 5: Solve for x
   x = 84,034,980.27/7,898.06
6. Step 6: Final answer
   x = 10,639.95