Finding the Fourth Proportional to 6,528,298.20, 9,780,783.30 and 3,155,069.40

Step by Step Solution

1. Step 1: Write the proportion equation
   6,528,298.20 : 9,780,783.30 = 3,155,069.40 : x
2. Step 2: Convert to fraction form
   6,528,298.20/9,780,783.30 = 3,155,069.40/x
3. Step 3: Cross multiply
   6,528,298.20x = 9,780,783.30 × 3,155,069.40
4. Step 4: Simplify right side
   6,528,298.20x = 30,859,050,097,861.02
5. Step 5: Solve for x
   x = 30,859,050,097,861.02/6,528,298.20
6. Step 6: Final answer
   x = 4,726,966.99