Finding the Fourth Proportional to 6,640,429.80, 9,163,669.28 and 3,619,498.15

Step by Step Solution

1. Step 1: Write the proportion equation
   6,640,429.80 : 9,163,669.28 = 3,619,498.15 : x
2. Step 2: Convert to fraction form
   6,640,429.80/9,163,669.28 = 3,619,498.15/x
3. Step 3: Cross multiply
   6,640,429.80x = 9,163,669.28 × 3,619,498.15
4. Step 4: Simplify right side
   6,640,429.80x = 33,167,884,006,171.83
5. Step 5: Solve for x
   x = 33,167,884,006,171.83/6,640,429.80
6. Step 6: Final answer
   x = 4,994,839.94