Finding the Fourth Proportional to 8,900.04, 13,342.86 and 5,436.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,900.04 : 13,342.86 = 5,436.12 : x
2. Step 2: Convert to fraction form
   8,900.04/13,342.86 = 5,436.12/x
3. Step 3: Cross multiply
   8,900.04x = 13,342.86 × 5,436.12
4. Step 4: Simplify right side
   8,900.04x = 72,533,388.10
5. Step 5: Solve for x
   x = 72,533,388.10/8,900.04
6. Step 6: Final answer
   x = 8,149.78