Finding the Fourth Proportional to 42,327.63, 63,467.15 and 12,736.71

Step by Step Solution

1. Step 1: Write the proportion equation
   42,327.63 : 63,467.15 = 12,736.71 : x
2. Step 2: Convert to fraction form
   42,327.63/63,467.15 = 12,736.71/x
3. Step 3: Cross multiply
   42,327.63x = 63,467.15 × 12,736.71
4. Step 4: Simplify right side
   42,327.63x = 808,362,620.39
5. Step 5: Solve for x
   x = 808,362,620.39/42,327.63
6. Step 6: Final answer
   x = 19,097.75