Finding the Fourth Proportional to 42,624.39, 63,934.27 and 13,042.22

Step by Step Solution

1. Step 1: Write the proportion equation
   42,624.39 : 63,934.27 = 13,042.22 : x
2. Step 2: Convert to fraction form
   42,624.39/63,934.27 = 13,042.22/x
3. Step 3: Cross multiply
   42,624.39x = 63,934.27 × 13,042.22
4. Step 4: Simplify right side
   42,624.39x = 833,844,814.88
5. Step 5: Solve for x
   x = 833,844,814.88/42,624.39
6. Step 6: Final answer
   x = 19,562.62