Finding the Fourth Proportional to 10,900.14, 16,353.29 and 4,980.89

Step by Step Solution

1. Step 1: Write the proportion equation
   10,900.14 : 16,353.29 = 4,980.89 : x
2. Step 2: Convert to fraction form
   10,900.14/16,353.29 = 4,980.89/x
3. Step 3: Cross multiply
   10,900.14x = 16,353.29 × 4,980.89
4. Step 4: Simplify right side
   10,900.14x = 81,453,991.96
5. Step 5: Solve for x
   x = 81,453,991.96/10,900.14
6. Step 6: Final answer
   x = 7,472.74