Finding the Fourth Proportional to 78,384.56, 108,170.87 and 42,573.80

Step by Step Solution

1. Step 1: Write the proportion equation
   78,384.56 : 108,170.87 = 42,573.80 : x
2. Step 2: Convert to fraction form
   78,384.56/108,170.87 = 42,573.80/x
3. Step 3: Cross multiply
   78,384.56x = 108,170.87 × 42,573.80
4. Step 4: Simplify right side
   78,384.56x = 4,605,245,162.50
5. Step 5: Solve for x
   x = 4,605,245,162.50/78,384.56
6. Step 6: Final answer
   x = 58,751.94