Finding the Fourth Proportional to 10,764.77, 14,847.12 and 7,790.45

Step by Step Solution

1. Step 1: Write the proportion equation
   10,764.77 : 14,847.12 = 7,790.45 : x
2. Step 2: Convert to fraction form
   10,764.77/14,847.12 = 7,790.45/x
3. Step 3: Cross multiply
   10,764.77x = 14,847.12 × 7,790.45
4. Step 4: Simplify right side
   10,764.77x = 115,665,671.77
5. Step 5: Solve for x
   x = 115,665,671.77/10,764.77
6. Step 6: Final answer
   x = 10,744.84