Finding the Fourth Proportional to 7,412.42, 10,212.72 and 4,890.08

Step by Step Solution

1. Step 1: Write the proportion equation
   7,412.42 : 10,212.72 = 4,890.08 : x
2. Step 2: Convert to fraction form
   7,412.42/10,212.72 = 4,890.08/x
3. Step 3: Cross multiply
   7,412.42x = 10,212.72 × 4,890.08
4. Step 4: Simplify right side
   7,412.42x = 49,941,017.82
5. Step 5: Solve for x
   x = 49,941,017.82/7,412.42
6. Step 6: Final answer
   x = 6,737.48