Finding the Fourth Proportional to 12,858.48, 17,744.76 and 7,553.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,858.48 : 17,744.76 = 7,553.34 : x
2. Step 2: Convert to fraction form
   12,858.48/17,744.76 = 7,553.34/x
3. Step 3: Cross multiply
   12,858.48x = 17,744.76 × 7,553.34
4. Step 4: Simplify right side
   12,858.48x = 134,032,205.50
5. Step 5: Solve for x
   x = 134,032,205.50/12,858.48
6. Step 6: Final answer
   x = 10,423.64