Finding the Fourth Proportional to 42,651.43, 63,974.84 and 13,069.35

Step by Step Solution

1. Step 1: Write the proportion equation
   42,651.43 : 63,974.84 = 13,069.35 : x
2. Step 2: Convert to fraction form
   42,651.43/63,974.84 = 13,069.35/x
3. Step 3: Cross multiply
   42,651.43x = 63,974.84 × 13,069.35
4. Step 4: Simplify right side
   42,651.43x = 836,109,798.72
5. Step 5: Solve for x
   x = 836,109,798.72/42,651.43
6. Step 6: Final answer
   x = 19,603.32