Finding the Fourth Proportional to 4,978.42, 7,468.98 and 4,434.40

Step by Step Solution

1. Step 1: Write the proportion equation
   4,978.42 : 7,468.98 = 4,434.40 : x
2. Step 2: Convert to fraction form
   4,978.42/7,468.98 = 4,434.40/x
3. Step 3: Cross multiply
   4,978.42x = 7,468.98 × 4,434.40
4. Step 4: Simplify right side
   4,978.42x = 33,120,444.91
5. Step 5: Solve for x
   x = 33,120,444.91/4,978.42
6. Step 6: Final answer
   x = 6,652.80