Finding the Fourth Proportional to 9,404,578.91, 12,978,461.10 and 5,275,525.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,404,578.91 : 12,978,461.10 = 5,275,525.34 : x
2. Step 2: Convert to fraction form
   9,404,578.91/12,978,461.10 = 5,275,525.34/x
3. Step 3: Cross multiply
   9,404,578.91x = 12,978,461.10 × 5,275,525.34
4. Step 4: Simplify right side
   9,404,578.91x = 68,468,200,407,254.27
5. Step 5: Solve for x
   x = 68,468,200,407,254.27/9,404,578.91
6. Step 6: Final answer
   x = 7,280,304.74