Finding the Fourth Proportional to 9,978.35, 14,969.95 and 3,052.85

Step by Step Solution

1. Step 1: Write the proportion equation
   9,978.35 : 14,969.95 = 3,052.85 : x
2. Step 2: Convert to fraction form
   9,978.35/14,969.95 = 3,052.85/x
3. Step 3: Cross multiply
   9,978.35x = 14,969.95 × 3,052.85
4. Step 4: Simplify right side
   9,978.35x = 45,701,011.86
5. Step 5: Solve for x
   x = 45,701,011.86/9,978.35
6. Step 6: Final answer
   x = 4,580.02