Finding the Fourth Proportional to 228,569.42, 342,876.69 and 78,789.98

Step by Step Solution

1. Step 1: Write the proportion equation
   228,569.42 : 342,876.69 = 78,789.98 : x
2. Step 2: Convert to fraction form
   228,569.42/342,876.69 = 78,789.98/x
3. Step 3: Cross multiply
   228,569.42x = 342,876.69 × 78,789.98
4. Step 4: Simplify right side
   228,569.42x = 27,015,248,404.76
5. Step 5: Solve for x
   x = 27,015,248,404.76/228,569.42
6. Step 6: Final answer
   x = 118,192.75