Finding the Fourth Proportional to 42,650.31, 63,973.15 and 13,068.23

Step by Step Solution

1. Step 1: Write the proportion equation
   42,650.31 : 63,973.15 = 13,068.23 : x
2. Step 2: Convert to fraction form
   42,650.31/63,973.15 = 13,068.23/x
3. Step 3: Cross multiply
   42,650.31x = 63,973.15 × 13,068.23
4. Step 4: Simplify right side
   42,650.31x = 836,015,738.92
5. Step 5: Solve for x
   x = 836,015,738.92/42,650.31
6. Step 6: Final answer
   x = 19,601.64