Finding the Fourth Proportional to 78,343.69, 108,113.72 and 42,532.78

Step by Step Solution

1. Step 1: Write the proportion equation
   78,343.69 : 108,113.72 = 42,532.78 : x
2. Step 2: Convert to fraction form
   78,343.69/108,113.72 = 42,532.78/x
3. Step 3: Cross multiply
   78,343.69x = 108,113.72 × 42,532.78
4. Step 4: Simplify right side
   78,343.69x = 4,598,377,067.74
5. Step 5: Solve for x
   x = 4,598,377,067.74/78,343.69
6. Step 6: Final answer
   x = 58,694.93