Finding the Fourth Proportional to 9,109.77, 12,574.64 and 5,334.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,109.77 : 12,574.64 = 5,334.15 : x
2. Step 2: Convert to fraction form
   9,109.77/12,574.64 = 5,334.15/x
3. Step 3: Cross multiply
   9,109.77x = 12,574.64 × 5,334.15
4. Step 4: Simplify right side
   9,109.77x = 67,075,046.44
5. Step 5: Solve for x
   x = 67,075,046.44/9,109.77
6. Step 6: Final answer
   x = 7,362.98