Finding the Fourth Proportional to 42,250.34, 63,367.40 and 12,668.16

Step by Step Solution

1. Step 1: Write the proportion equation
   42,250.34 : 63,367.40 = 12,668.16 : x
2. Step 2: Convert to fraction form
   42,250.34/63,367.40 = 12,668.16/x
3. Step 3: Cross multiply
   42,250.34x = 63,367.40 × 12,668.16
4. Step 4: Simplify right side
   42,250.34x = 802,748,361.98
5. Step 5: Solve for x
   x = 802,748,361.98/42,250.34
6. Step 6: Final answer
   x = 18,999.81