Finding the Fourth Proportional to 49,426.74, 68,213.78 and 28,209.18

Step by Step Solution

1. Step 1: Write the proportion equation
   49,426.74 : 68,213.78 = 28,209.18 : x
2. Step 2: Convert to fraction form
   49,426.74/68,213.78 = 28,209.18/x
3. Step 3: Cross multiply
   49,426.74x = 68,213.78 × 28,209.18
4. Step 4: Simplify right side
   49,426.74x = 1,924,254,798.50
5. Step 5: Solve for x
   x = 1,924,254,798.50/49,426.74
6. Step 6: Final answer
   x = 38,931.45