Finding the Fourth Proportional to 123,499,368.87, 185,305,624.16 and 53,491,010.13

Step by Step Solution

1. Step 1: Write the proportion equation
   123,499,368.87 : 185,305,624.16 = 53,491,010.13 : x
2. Step 2: Convert to fraction form
   123,499,368.87/185,305,624.16 = 53,491,010.13/x
3. Step 3: Cross multiply
   123,499,368.87x = 185,305,624.16 × 53,491,010.13
4. Step 4: Simplify right side
   123,499,368.87x = 9,912,185,018,821,078
5. Step 5: Solve for x
   x = 9,912,185,018,821,078/123,499,368.87
6. Step 6: Final answer
   x = 80,261,017.60