Finding the Fourth Proportional to 3,862,636.79, 5,803,401.59 and 3,647,784.95

Step by Step Solution

1. Step 1: Write the proportion equation
   3,862,636.79 : 5,803,401.59 = 3,647,784.95 : x
2. Step 2: Convert to fraction form
   3,862,636.79/5,803,401.59 = 3,647,784.95/x
3. Step 3: Cross multiply
   3,862,636.79x = 5,803,401.59 × 3,647,784.95
4. Step 4: Simplify right side
   3,862,636.79x = 21,169,560,978,808.07
5. Step 5: Solve for x
   x = 21,169,560,978,808.07/3,862,636.79
6. Step 6: Final answer
   x = 5,480,598.39