Finding the Fourth Proportional to 42,468.35, 63,719.98 and 18,763.38

Step by Step Solution

1. Step 1: Write the proportion equation
   42,468.35 : 63,719.98 = 18,763.38 : x
2. Step 2: Convert to fraction form
   42,468.35/63,719.98 = 18,763.38/x
3. Step 3: Cross multiply
   42,468.35x = 63,719.98 × 18,763.38
4. Step 4: Simplify right side
   42,468.35x = 1,195,602,151.42
5. Step 5: Solve for x
   x = 1,195,602,151.42/42,468.35
6. Step 6: Final answer
   x = 28,152.78