Finding the Fourth Proportional to 42,343.59, 63,523.61 and 12,759.96

Step by Step Solution

1. Step 1: Write the proportion equation
   42,343.59 : 63,523.61 = 12,759.96 : x
2. Step 2: Convert to fraction form
   42,343.59/63,523.61 = 12,759.96/x
3. Step 3: Cross multiply
   42,343.59x = 63,523.61 × 12,759.96
4. Step 4: Simplify right side
   42,343.59x = 810,558,722.66
5. Step 5: Solve for x
   x = 810,558,722.66/42,343.59
6. Step 6: Final answer
   x = 19,142.42