Finding the Fourth Proportional to 185,229.72, 277,540.82 and 78,528.42

Step by Step Solution

1. Step 1: Write the proportion equation
   185,229.72 : 277,540.82 = 78,528.42 : x
2. Step 2: Convert to fraction form
   185,229.72/277,540.82 = 78,528.42/x
3. Step 3: Cross multiply
   185,229.72x = 277,540.82 × 78,528.42
4. Step 4: Simplify right side
   185,229.72x = 21,794,842,080.10
5. Step 5: Solve for x
   x = 21,794,842,080.10/185,229.72
6. Step 6: Final answer
   x = 117,663.85