Finding the Fourth Proportional to 42,308.06, 63,453.18 and 12,717.14

Step by Step Solution

1. Step 1: Write the proportion equation
   42,308.06 : 63,453.18 = 12,717.14 : x
2. Step 2: Convert to fraction form
   42,308.06/63,453.18 = 12,717.14/x
3. Step 3: Cross multiply
   42,308.06x = 63,453.18 × 12,717.14
4. Step 4: Simplify right side
   42,308.06x = 806,942,973.51
5. Step 5: Solve for x
   x = 806,942,973.51/42,308.06
6. Step 6: Final answer
   x = 19,073.03