Finding the Fourth Proportional to 152,604.10, 228,906.15 and 144,828.10

Step by Step Solution

1. Step 1: Write the proportion equation
   152,604.10 : 228,906.15 = 144,828.10 : x
2. Step 2: Convert to fraction form
   152,604.10/228,906.15 = 144,828.10/x
3. Step 3: Cross multiply
   152,604.10x = 228,906.15 × 144,828.10
4. Step 4: Simplify right side
   152,604.10x = 33,152,042,782.82
5. Step 5: Solve for x
   x = 33,152,042,782.82/152,604.10
6. Step 6: Final answer
   x = 217,242.15