Finding the Fourth Proportional to 42,030.65, 63,052.05 and 12,444.59

Step by Step Solution

1. Step 1: Write the proportion equation
   42,030.65 : 63,052.05 = 12,444.59 : x
2. Step 2: Convert to fraction form
   42,030.65/63,052.05 = 12,444.59/x
3. Step 3: Cross multiply
   42,030.65x = 63,052.05 × 12,444.59
4. Step 4: Simplify right side
   42,030.65x = 784,656,595.65
5. Step 5: Solve for x
   x = 784,656,595.65/42,030.65
6. Step 6: Final answer
   x = 18,668.68