Finding the Fourth Proportional to 9,120,907.41, 12,586,298.39 and 5,200,115.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,120,907.41 : 12,586,298.39 = 5,200,115.31 : x
2. Step 2: Convert to fraction form
   9,120,907.41/12,586,298.39 = 5,200,115.31/x
3. Step 3: Cross multiply
   9,120,907.41x = 12,586,298.39 × 5,200,115.31
4. Step 4: Simplify right side
   9,120,907.41x = 65,450,202,928,066.77
5. Step 5: Solve for x
   x = 65,450,202,928,066.77/9,120,907.41
6. Step 6: Final answer
   x = 7,175,843.37