Finding the Fourth Proportional to 51,414,789.20, 77,121,850.84 and 13,075,972

Step by Step Solution

1. Step 1: Write the proportion equation
   51,414,789.20 : 77,121,850.84 = 13,075,972 : x
2. Step 2: Convert to fraction form
   51,414,789.20/77,121,850.84 = 13,075,972/x
3. Step 3: Cross multiply
   51,414,789.20x = 77,121,850.84 × 13,075,972
4. Step 4: Simplify right side
   51,414,789.20x = 1,008,443,162,172,016.50
5. Step 5: Solve for x
   x = 1,008,443,162,172,016.50/51,414,789.20
6. Step 6: Final answer
   x = 19,613,873.32