Finding the Fourth Proportional to 51,103.40, 70,521.94 and 28,747.40

Step by Step Solution

1. Step 1: Write the proportion equation
   51,103.40 : 70,521.94 = 28,747.40 : x
2. Step 2: Convert to fraction form
   51,103.40/70,521.94 = 28,747.40/x
3. Step 3: Cross multiply
   51,103.40x = 70,521.94 × 28,747.40
4. Step 4: Simplify right side
   51,103.40x = 2,027,322,417.96
5. Step 5: Solve for x
   x = 2,027,322,417.96/51,103.40
6. Step 6: Final answer
   x = 39,670.99