Finding the Fourth Proportional to 78,742.25, 108,662.46 and 42,932.18

Step by Step Solution

1. Step 1: Write the proportion equation
   78,742.25 : 108,662.46 = 42,932.18 : x
2. Step 2: Convert to fraction form
   78,742.25/108,662.46 = 42,932.18/x
3. Step 3: Cross multiply
   78,742.25x = 108,662.46 × 42,932.18
4. Step 4: Simplify right side
   78,742.25x = 4,665,116,032.89
5. Step 5: Solve for x
   x = 4,665,116,032.89/78,742.25
6. Step 6: Final answer
   x = 59,245.40