Finding the Fourth Proportional to 42,567.72, 63,851.46 and 19,166.76

Step by Step Solution

1. Step 1: Write the proportion equation
   42,567.72 : 63,851.46 = 19,166.76 : x
2. Step 2: Convert to fraction form
   42,567.72/63,851.46 = 19,166.76/x
3. Step 3: Cross multiply
   42,567.72x = 63,851.46 × 19,166.76
4. Step 4: Simplify right side
   42,567.72x = 1,223,825,609.47
5. Step 5: Solve for x
   x = 1,223,825,609.47/42,567.72
6. Step 6: Final answer
   x = 28,750.09