Finding the Fourth Proportional to 42,646.86, 63,968.46 and 14,569.42

Step by Step Solution

1. Step 1: Write the proportion equation
   42,646.86 : 63,968.46 = 14,569.42 : x
2. Step 2: Convert to fraction form
   42,646.86/63,968.46 = 14,569.42/x
3. Step 3: Cross multiply
   42,646.86x = 63,968.46 × 14,569.42
4. Step 4: Simplify right side
   42,646.86x = 931,983,360.49
5. Step 5: Solve for x
   x = 931,983,360.49/42,646.86
6. Step 6: Final answer
   x = 21,853.50