Finding the Fourth Proportional to 123,499,364.80, 185,305,618.18 and 53,491,006.12

Step by Step Solution

1. Step 1: Write the proportion equation
   123,499,364.80 : 185,305,618.18 = 53,491,006.12 : x
2. Step 2: Convert to fraction form
   123,499,364.80/185,305,618.18 = 53,491,006.12/x
3. Step 3: Cross multiply
   123,499,364.80x = 185,305,618.18 × 53,491,006.12
4. Step 4: Simplify right side
   123,499,364.80x = 9,912,183,956,136,764
5. Step 5: Solve for x
   x = 9,912,183,956,136,764/123,499,364.80
6. Step 6: Final answer
   x = 80,261,011.64