Finding the Fourth Proportional to 6,378,710.40, 8,802,630.72 and 3,478,158.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,378,710.40 : 8,802,630.72 = 3,478,158.72 : x
2. Step 2: Convert to fraction form
   6,378,710.40/8,802,630.72 = 3,478,158.72/x
3. Step 3: Cross multiply
   6,378,710.40x = 8,802,630.72 × 3,478,158.72
4. Step 4: Simplify right side
   6,378,710.40x = 30,616,946,797,707.88
5. Step 5: Solve for x
   x = 30,616,946,797,707.88/6,378,710.40
6. Step 6: Final answer
   x = 4,799,864.69