Finding the Fourth Proportional to 49,031.56, 67,668.18 and 28,894.72

Step by Step Solution

1. Step 1: Write the proportion equation
   49,031.56 : 67,668.18 = 28,894.72 : x
2. Step 2: Convert to fraction form
   49,031.56/67,668.18 = 28,894.72/x
3. Step 3: Cross multiply
   49,031.56x = 67,668.18 × 28,894.72
4. Step 4: Simplify right side
   49,031.56x = 1,955,253,114.01
5. Step 5: Solve for x
   x = 1,955,253,114.01/49,031.56
6. Step 6: Final answer
   x = 39,877.44