Finding the Fourth Proportional to 42,348.72, 63,529.56 and 12,762.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,348.72 : 63,529.56 = 12,762.72 : x
2. Step 2: Convert to fraction form
   42,348.72/63,529.56 = 12,762.72/x
3. Step 3: Cross multiply
   42,348.72x = 63,529.56 × 12,762.72
4. Step 4: Simplify right side
   42,348.72x = 810,809,986.00
5. Step 5: Solve for x
   x = 810,809,986.00/42,348.72
6. Step 6: Final answer
   x = 19,146.03