Finding the Fourth Proportional to 9,921.59, 14,874.51 and 4,920.46

Step by Step Solution

1. Step 1: Write the proportion equation
   9,921.59 : 14,874.51 = 4,920.46 : x
2. Step 2: Convert to fraction form
   9,921.59/14,874.51 = 4,920.46/x
3. Step 3: Cross multiply
   9,921.59x = 14,874.51 × 4,920.46
4. Step 4: Simplify right side
   9,921.59x = 73,189,357.10
5. Step 5: Solve for x
   x = 73,189,357.10/9,921.59
6. Step 6: Final answer
   x = 7,376.78