Finding the Fourth Proportional to 24,978.48, 37,443.42 and 20,308.02

Step by Step Solution

1. Step 1: Write the proportion equation
   24,978.48 : 37,443.42 = 20,308.02 : x
2. Step 2: Convert to fraction form
   24,978.48/37,443.42 = 20,308.02/x
3. Step 3: Cross multiply
   24,978.48x = 37,443.42 × 20,308.02
4. Step 4: Simplify right side
   24,978.48x = 760,401,722.23
5. Step 5: Solve for x
   x = 760,401,722.23/24,978.48
6. Step 6: Final answer
   x = 30,442.27