Finding the Fourth Proportional to 49,364.72, 73,928.40 and 28,240.72

Step by Step Solution

1. Step 1: Write the proportion equation
   49,364.72 : 73,928.40 = 28,240.72 : x
2. Step 2: Convert to fraction form
   49,364.72/73,928.40 = 28,240.72/x
3. Step 3: Cross multiply
   49,364.72x = 73,928.40 × 28,240.72
4. Step 4: Simplify right side
   49,364.72x = 2,087,791,244.45
5. Step 5: Solve for x
   x = 2,087,791,244.45/49,364.72
6. Step 6: Final answer
   x = 42,293.19