Finding the Fourth Proportional to 42,145.02, 63,233.91 and 18,755.46

Step by Step Solution

1. Step 1: Write the proportion equation
   42,145.02 : 63,233.91 = 18,755.46 : x
2. Step 2: Convert to fraction form
   42,145.02/63,233.91 = 18,755.46/x
3. Step 3: Cross multiply
   42,145.02x = 63,233.91 × 18,755.46
4. Step 4: Simplify right side
   42,145.02x = 1,185,981,069.65
5. Step 5: Solve for x
   x = 1,185,981,069.65/42,145.02
6. Step 6: Final answer
   x = 28,140.48