Finding the Fourth Proportional to 42,039.15, 63,042.33 and 18,353.94

Step by Step Solution

1. Step 1: Write the proportion equation
   42,039.15 : 63,042.33 = 18,353.94 : x
2. Step 2: Convert to fraction form
   42,039.15/63,042.33 = 18,353.94/x
3. Step 3: Cross multiply
   42,039.15x = 63,042.33 × 18,353.94
4. Step 4: Simplify right side
   42,039.15x = 1,157,075,142.28
5. Step 5: Solve for x
   x = 1,157,075,142.28/42,039.15
6. Step 6: Final answer
   x = 27,523.75