Finding the Fourth Proportional to 42,250.51, 63,357.09 and 12,662.83

Step by Step Solution

1. Step 1: Write the proportion equation
   42,250.51 : 63,357.09 = 12,662.83 : x
2. Step 2: Convert to fraction form
   42,250.51/63,357.09 = 12,662.83/x
3. Step 3: Cross multiply
   42,250.51x = 63,357.09 × 12,662.83
4. Step 4: Simplify right side
   42,250.51x = 802,280,059.96
5. Step 5: Solve for x
   x = 802,280,059.96/42,250.51
6. Step 6: Final answer
   x = 18,988.65