Finding the Fourth Proportional to 9,902.94, 14,861.90 and 3,666.75

Step by Step Solution

1. Step 1: Write the proportion equation
   9,902.94 : 14,861.90 = 3,666.75 : x
2. Step 2: Convert to fraction form
   9,902.94/14,861.90 = 3,666.75/x
3. Step 3: Cross multiply
   9,902.94x = 14,861.90 × 3,666.75
4. Step 4: Simplify right side
   9,902.94x = 54,494,871.83
5. Step 5: Solve for x
   x = 54,494,871.83/9,902.94
6. Step 6: Final answer
   x = 5,502.90