Finding the Fourth Proportional to 78,323.67, 108,086.73 and 42,513.66

Step by Step Solution

1. Step 1: Write the proportion equation
   78,323.67 : 108,086.73 = 42,513.66 : x
2. Step 2: Convert to fraction form
   78,323.67/108,086.73 = 42,513.66/x
3. Step 3: Cross multiply
   78,323.67x = 108,086.73 × 42,513.66
4. Step 4: Simplify right side
   78,323.67x = 4,595,162,489.73
5. Step 5: Solve for x
   x = 4,595,162,489.73/78,323.67
6. Step 6: Final answer
   x = 58,668.89