Finding the Fourth Proportional to 42,336.71, 63,507.50 and 12,751.46

Step by Step Solution

1. Step 1: Write the proportion equation
   42,336.71 : 63,507.50 = 12,751.46 : x
2. Step 2: Convert to fraction form
   42,336.71/63,507.50 = 12,751.46/x
3. Step 3: Cross multiply
   42,336.71x = 63,507.50 × 12,751.46
4. Step 4: Simplify right side
   42,336.71x = 809,813,345.95
5. Step 5: Solve for x
   x = 809,813,345.95/42,336.71
6. Step 6: Final answer
   x = 19,127.92