Finding the Fourth Proportional to 42,023.67, 63,044.73 and 12,443.81

Step by Step Solution

1. Step 1: Write the proportion equation
   42,023.67 : 63,044.73 = 12,443.81 : x
2. Step 2: Convert to fraction form
   42,023.67/63,044.73 = 12,443.81/x
3. Step 3: Cross multiply
   42,023.67x = 63,044.73 × 12,443.81
4. Step 4: Simplify right side
   42,023.67x = 784,516,326.40
5. Step 5: Solve for x
   x = 784,516,326.40/42,023.67
6. Step 6: Final answer
   x = 18,668.44