Finding the Fourth Proportional to 42,441.34, 63,668.61 and 12,852.13

Step by Step Solution

1. Step 1: Write the proportion equation
   42,441.34 : 63,668.61 = 12,852.13 : x
2. Step 2: Convert to fraction form
   42,441.34/63,668.61 = 12,852.13/x
3. Step 3: Cross multiply
   42,441.34x = 63,668.61 × 12,852.13
4. Step 4: Simplify right side
   42,441.34x = 818,277,093.47
5. Step 5: Solve for x
   x = 818,277,093.47/42,441.34
6. Step 6: Final answer
   x = 19,280.19