Finding the Fourth Proportional to 13,388.16, 20,085.18 and 5,068.25

Step by Step Solution

1. Step 1: Write the proportion equation
   13,388.16 : 20,085.18 = 5,068.25 : x
2. Step 2: Convert to fraction form
   13,388.16/20,085.18 = 5,068.25/x
3. Step 3: Cross multiply
   13,388.16x = 20,085.18 × 5,068.25
4. Step 4: Simplify right side
   13,388.16x = 101,796,594.10
5. Step 5: Solve for x
   x = 101,796,594.10/13,388.16
6. Step 6: Final answer
   x = 7,603.48