Finding the Fourth Proportional to 42,624.45, 63,934.32 and 13,042.29

Step by Step Solution

1. Step 1: Write the proportion equation
   42,624.45 : 63,934.32 = 13,042.29 : x
2. Step 2: Convert to fraction form
   42,624.45/63,934.32 = 13,042.29/x
3. Step 3: Cross multiply
   42,624.45x = 63,934.32 × 13,042.29
4. Step 4: Simplify right side
   42,624.45x = 833,849,942.39
5. Step 5: Solve for x
   x = 833,849,942.39/42,624.45
6. Step 6: Final answer
   x = 19,562.71