Finding the Fourth Proportional to 7,665.98, 10,577.76 and 4,522.78

Step by Step Solution

1. Step 1: Write the proportion equation
   7,665.98 : 10,577.76 = 4,522.78 : x
2. Step 2: Convert to fraction form
   7,665.98/10,577.76 = 4,522.78/x
3. Step 3: Cross multiply
   7,665.98x = 10,577.76 × 4,522.78
4. Step 4: Simplify right side
   7,665.98x = 47,840,881.37
5. Step 5: Solve for x
   x = 47,840,881.37/7,665.98
6. Step 6: Final answer
   x = 6,240.67