Finding the Fourth Proportional to 78,662.58, 108,556.32 and 42,854.52

Step by Step Solution

1. Step 1: Write the proportion equation
   78,662.58 : 108,556.32 = 42,854.52 : x
2. Step 2: Convert to fraction form
   78,662.58/108,556.32 = 42,854.52/x
3. Step 3: Cross multiply
   78,662.58x = 108,556.32 × 42,854.52
4. Step 4: Simplify right side
   78,662.58x = 4,652,128,986.57
5. Step 5: Solve for x
   x = 4,652,128,986.57/78,662.58
6. Step 6: Final answer
   x = 59,140.31