Finding the Fourth Proportional to 42,766.63, 64,133.98 and 14,678.71

Step by Step Solution

1. Step 1: Write the proportion equation
   42,766.63 : 64,133.98 = 14,678.71 : x
2. Step 2: Convert to fraction form
   42,766.63/64,133.98 = 14,678.71/x
3. Step 3: Cross multiply
   42,766.63x = 64,133.98 × 14,678.71
4. Step 4: Simplify right side
   42,766.63x = 941,404,093.57
5. Step 5: Solve for x
   x = 941,404,093.57/42,766.63
6. Step 6: Final answer
   x = 22,012.59