Finding the Fourth Proportional to 19,036,080.96, 28,550,453.76 and 5,389,123.20

Step by Step Solution

1. Step 1: Write the proportion equation
   19,036,080.96 : 28,550,453.76 = 5,389,123.20 : x
2. Step 2: Convert to fraction form
   19,036,080.96/28,550,453.76 = 5,389,123.20/x
3. Step 3: Cross multiply
   19,036,080.96x = 28,550,453.76 × 5,389,123.20
4. Step 4: Simplify right side
   19,036,080.96x = 153,861,912,728,543.25
5. Step 5: Solve for x
   x = 153,861,912,728,543.25/19,036,080.96
6. Step 6: Final answer
   x = 8,082,646.48