Finding the Fourth Proportional to 47,562.32, 65,639.40 and 28,442.72

Step by Step Solution

1. Step 1: Write the proportion equation
   47,562.32 : 65,639.40 = 28,442.72 : x
2. Step 2: Convert to fraction form
   47,562.32/65,639.40 = 28,442.72/x
3. Step 3: Cross multiply
   47,562.32x = 65,639.40 × 28,442.72
4. Step 4: Simplify right side
   47,562.32x = 1,866,963,075.17
5. Step 5: Solve for x
   x = 1,866,963,075.17/47,562.32
6. Step 6: Final answer
   x = 39,252.99