Finding the Fourth Proportional to 78,486.27, 108,309.52 and 42,675.96

Step by Step Solution

1. Step 1: Write the proportion equation
   78,486.27 : 108,309.52 = 42,675.96 : x
2. Step 2: Convert to fraction form
   78,486.27/108,309.52 = 42,675.96/x
3. Step 3: Cross multiply
   78,486.27x = 108,309.52 × 42,675.96
4. Step 4: Simplify right side
   78,486.27x = 4,622,212,743.14
5. Step 5: Solve for x
   x = 4,622,212,743.14/78,486.27
6. Step 6: Final answer
   x = 58,891.99