Finding the Fourth Proportional to 228,592.09, 342,910.71 and 78,812.69

Step by Step Solution

1. Step 1: Write the proportion equation
   228,592.09 : 342,910.71 = 78,812.69 : x
2. Step 2: Convert to fraction form
   228,592.09/342,910.71 = 78,812.69/x
3. Step 3: Cross multiply
   228,592.09x = 342,910.71 × 78,812.69
4. Step 4: Simplify right side
   228,592.09x = 27,025,715,484.91
5. Step 5: Solve for x
   x = 27,025,715,484.91/228,592.09
6. Step 6: Final answer
   x = 118,226.82