Finding the Fourth Proportional to 49,602.21, 68,452.25 and 28,388.31

Step by Step Solution

1. Step 1: Write the proportion equation
   49,602.21 : 68,452.25 = 28,388.31 : x
2. Step 2: Convert to fraction form
   49,602.21/68,452.25 = 28,388.31/x
3. Step 3: Cross multiply
   49,602.21x = 68,452.25 × 28,388.31
4. Step 4: Simplify right side
   49,602.21x = 1,943,243,693.20
5. Step 5: Solve for x
   x = 1,943,243,693.20/49,602.21
6. Step 6: Final answer
   x = 39,176.55