Finding the Fourth Proportional to 8,997.86, 12,410.61 and 7,800.70

Step by Step Solution

1. Step 1: Write the proportion equation
   8,997.86 : 12,410.61 = 7,800.70 : x
2. Step 2: Convert to fraction form
   8,997.86/12,410.61 = 7,800.70/x
3. Step 3: Cross multiply
   8,997.86x = 12,410.61 × 7,800.70
4. Step 4: Simplify right side
   8,997.86x = 96,811,445.43
5. Step 5: Solve for x
   x = 96,811,445.43/8,997.86
6. Step 6: Final answer
   x = 10,759.39