Finding the Fourth Proportional to 10,018,435.83, 13,825,468.05 and 5,434,757.21

Step by Step Solution

1. Step 1: Write the proportion equation
   10,018,435.83 : 13,825,468.05 = 5,434,757.21 : x
2. Step 2: Convert to fraction form
   10,018,435.83/13,825,468.05 = 5,434,757.21/x
3. Step 3: Cross multiply
   10,018,435.83x = 13,825,468.05 × 5,434,757.21
4. Step 4: Simplify right side
   10,018,435.83x = 75,138,062,166,362.14
5. Step 5: Solve for x
   x = 75,138,062,166,362.14/10,018,435.83
6. Step 6: Final answer
   x = 7,499,979.38