Finding the Fourth Proportional to 7,172,447.20, 9,897,980.82 and 4,074,976.01

Step by Step Solution

1. Step 1: Write the proportion equation
   7,172,447.20 : 9,897,980.82 = 4,074,976.01 : x
2. Step 2: Convert to fraction form
   7,172,447.20/9,897,980.82 = 4,074,976.01/x
3. Step 3: Cross multiply
   7,172,447.20x = 9,897,980.82 × 4,074,976.01
4. Step 4: Simplify right side
   7,172,447.20x = 40,334,034,388,940.12
5. Step 5: Solve for x
   x = 40,334,034,388,940.12/7,172,447.20
6. Step 6: Final answer
   x = 5,623,468.99