Finding the Fourth Proportional to 51,632.52, 71,248.72 and 28,968.40

Step by Step Solution

1. Step 1: Write the proportion equation
   51,632.52 : 71,248.72 = 28,968.40 : x
2. Step 2: Convert to fraction form
   51,632.52/71,248.72 = 28,968.40/x
3. Step 3: Cross multiply
   51,632.52x = 71,248.72 × 28,968.40
4. Step 4: Simplify right side
   51,632.52x = 2,063,961,420.45
5. Step 5: Solve for x
   x = 2,063,961,420.45/51,632.52
6. Step 6: Final answer
   x = 39,974.06