Finding the Fourth Proportional to 42,379.48, 63,571.02 and 14,300.20

Step by Step Solution

1. Step 1: Write the proportion equation
   42,379.48 : 63,571.02 = 14,300.20 : x
2. Step 2: Convert to fraction form
   42,379.48/63,571.02 = 14,300.20/x
3. Step 3: Cross multiply
   42,379.48x = 63,571.02 × 14,300.20
4. Step 4: Simplify right side
   42,379.48x = 909,078,300.20
5. Step 5: Solve for x
   x = 909,078,300.20/42,379.48
6. Step 6: Final answer
   x = 21,450.91