Finding the Fourth Proportional to 216,152.69, 298,251.39 and 151,818.50

Step by Step Solution

1. Step 1: Write the proportion equation
   216,152.69 : 298,251.39 = 151,818.50 : x
2. Step 2: Convert to fraction form
   216,152.69/298,251.39 = 151,818.50/x
3. Step 3: Cross multiply
   216,152.69x = 298,251.39 × 151,818.50
4. Step 4: Simplify right side
   216,152.69x = 45,280,079,398.34
5. Step 5: Solve for x
   x = 45,280,079,398.34/216,152.69
6. Step 6: Final answer
   x = 209,481.91