Finding the Fourth Proportional to 9,015.00, 12,436.17 and 5,428.32

Step by Step Solution

1. Step 1: Write the proportion equation
   9,015.00 : 12,436.17 = 5,428.32 : x
2. Step 2: Convert to fraction form
   9,015.00/12,436.17 = 5,428.32/x
3. Step 3: Cross multiply
   9,015.00x = 12,436.17 × 5,428.32
4. Step 4: Simplify right side
   9,015.00x = 67,507,466.24
5. Step 5: Solve for x
   x = 67,507,466.24/9,015.00
6. Step 6: Final answer
   x = 7,488.35