Finding the Fourth Proportional to 10,769.12, 16,153.76 and 2,978

Step by Step Solution

1. Step 1: Write the proportion equation
   10,769.12 : 16,153.76 = 2,978 : x
2. Step 2: Convert to fraction form
   10,769.12/16,153.76 = 2,978/x
3. Step 3: Cross multiply
   10,769.12x = 16,153.76 × 2,978
4. Step 4: Simplify right side
   10,769.12x = 48,105,897.28
5. Step 5: Solve for x
   x = 48,105,897.28/10,769.12
6. Step 6: Final answer
   x = 4,467.02