Finding the Fourth Proportional to 149,469,105.28, 206,267,493.70 and 83,389,613.76

Step by Step Solution

1. Step 1: Write the proportion equation
   149,469,105.28 : 206,267,493.70 = 83,389,613.76 : x
2. Step 2: Convert to fraction form
   149,469,105.28/206,267,493.70 = 83,389,613.76/x
3. Step 3: Cross multiply
   149,469,105.28x = 206,267,493.70 × 83,389,613.76
4. Step 4: Simplify right side
   149,469,105.28x = 17,200,566,630,886,234
5. Step 5: Solve for x
   x = 17,200,566,630,886,234/149,469,105.28
6. Step 6: Final answer
   x = 115,077,738.63