Finding the Fourth Proportional to 7,243,514.22, 9,986,061.28 and 5,778,395.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,243,514.22 : 9,986,061.28 = 5,778,395.50 : x
2. Step 2: Convert to fraction form
   7,243,514.22/9,986,061.28 = 5,778,395.50/x
3. Step 3: Cross multiply
   7,243,514.22x = 9,986,061.28 × 5,778,395.50
4. Step 4: Simplify right side
   7,243,514.22x = 57,703,411,563,076.23
5. Step 5: Solve for x
   x = 57,703,411,563,076.23/7,243,514.22
6. Step 6: Final answer
   x = 7,966,217.75