Finding the Fourth Proportional to 165,469,881.57, 228,345,650.69 and 91,137,364.17

Step by Step Solution

1. Step 1: Write the proportion equation
   165,469,881.57 : 228,345,650.69 = 91,137,364.17 : x
2. Step 2: Convert to fraction form
   165,469,881.57/228,345,650.69 = 91,137,364.17/x
3. Step 3: Cross multiply
   165,469,881.57x = 228,345,650.69 × 91,137,364.17
4. Step 4: Simplify right side
   165,469,881.57x = 20,810,820,723,114,456
5. Step 5: Solve for x
   x = 20,810,820,723,114,456/165,469,881.57
6. Step 6: Final answer
   x = 125,768,028.15