Finding the Fourth Proportional to 13,985.33, 19,300.07 and 7,612.25

Step by Step Solution

1. Step 1: Write the proportion equation
   13,985.33 : 19,300.07 = 7,612.25 : x
2. Step 2: Convert to fraction form
   13,985.33/19,300.07 = 7,612.25/x
3. Step 3: Cross multiply
   13,985.33x = 19,300.07 × 7,612.25
4. Step 4: Simplify right side
   13,985.33x = 146,916,880.39
5. Step 5: Solve for x
   x = 146,916,880.39/13,985.33
6. Step 6: Final answer
   x = 10,505.07