Finding the Fourth Proportional to 216,499,294.54, 298,480,002.30 and 171,992,938.96

Step by Step Solution

1. Step 1: Write the proportion equation
   216,499,294.54 : 298,480,002.30 = 171,992,938.96 : x
2. Step 2: Convert to fraction form
   216,499,294.54/298,480,002.30 = 171,992,938.96/x
3. Step 3: Cross multiply
   216,499,294.54x = 298,480,002.30 × 171,992,938.96
4. Step 4: Simplify right side
   216,499,294.54x = 51,336,452,816,364,568
5. Step 5: Solve for x
   x = 51,336,452,816,364,568/216,499,294.54
6. Step 6: Final answer
   x = 237,120,647.09