Finding the Fourth Proportional to 10,018,434.83, 13,825,466.67 and 5,434,756.21

Step by Step Solution

1. Step 1: Write the proportion equation
   10,018,434.83 : 13,825,466.67 = 5,434,756.21 : x
2. Step 2: Convert to fraction form
   10,018,434.83/13,825,466.67 = 5,434,756.21/x
3. Step 3: Cross multiply
   10,018,434.83x = 13,825,466.67 × 5,434,756.21
4. Step 4: Simplify right side
   10,018,434.83x = 75,138,040,840,930.52
5. Step 5: Solve for x
   x = 75,138,040,840,930.52/10,018,434.83
6. Step 6: Final answer
   x = 7,499,978.00