Finding the Fourth Proportional to 42,367.01, 63,552.16 and 12,784.85

Step by Step Solution

1. Step 1: Write the proportion equation
   42,367.01 : 63,552.16 = 12,784.85 : x
2. Step 2: Convert to fraction form
   42,367.01/63,552.16 = 12,784.85/x
3. Step 3: Cross multiply
   42,367.01x = 63,552.16 × 12,784.85
4. Step 4: Simplify right side
   42,367.01x = 812,504,769.32
5. Step 5: Solve for x
   x = 812,504,769.32/42,367.01
6. Step 6: Final answer
   x = 19,177.77