Finding the Fourth Proportional to 42,522.59, 63,783.92 and 19,121.69

Step by Step Solution

1. Step 1: Write the proportion equation
   42,522.59 : 63,783.92 = 19,121.69 : x
2. Step 2: Convert to fraction form
   42,522.59/63,783.92 = 19,121.69/x
3. Step 3: Cross multiply
   42,522.59x = 63,783.92 × 19,121.69
4. Step 4: Simplify right side
   42,522.59x = 1,219,656,552.49
5. Step 5: Solve for x
   x = 1,219,656,552.49/42,522.59
6. Step 6: Final answer
   x = 28,682.55