Finding the Fourth Proportional to 208,469,392.68, 287,693,056.50 and 114,383,514.72

Step by Step Solution

1. Step 1: Write the proportion equation
   208,469,392.68 : 287,693,056.50 = 114,383,514.72 : x
2. Step 2: Convert to fraction form
   208,469,392.68/287,693,056.50 = 114,383,514.72/x
3. Step 3: Cross multiply
   208,469,392.68x = 287,693,056.50 × 114,383,514.72
4. Step 4: Simplify right side
   208,469,392.68x = 32,907,342,963,009,540
5. Step 5: Solve for x
   x = 32,907,342,963,009,540/208,469,392.68
6. Step 6: Final answer
   x = 157,852,155.37