Finding the Fourth Proportional to 78,552.12, 108,402.41 and 42,742.39

Step by Step Solution

1. Step 1: Write the proportion equation
   78,552.12 : 108,402.41 = 42,742.39 : x
2. Step 2: Convert to fraction form
   78,552.12/108,402.41 = 42,742.39/x
3. Step 3: Cross multiply
   78,552.12x = 108,402.41 × 42,742.39
4. Step 4: Simplify right side
   78,552.12x = 4,633,378,085.16
5. Step 5: Solve for x
   x = 4,633,378,085.16/78,552.12
6. Step 6: Final answer
   x = 58,984.76