Finding the Fourth Proportional to 7,222,931.26, 9,967,581.54 and 3,959,686.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,222,931.26 : 9,967,581.54 = 3,959,686.72 : x
2. Step 2: Convert to fraction form
   7,222,931.26/9,967,581.54 = 3,959,686.72/x
3. Step 3: Cross multiply
   7,222,931.26x = 9,967,581.54 × 3,959,686.72
4. Step 4: Simplify right side
   7,222,931.26x = 39,468,500,254,455.15
5. Step 5: Solve for x
   x = 39,468,500,254,455.15/7,222,931.26
6. Step 6: Final answer
   x = 5,464,332.81