Finding the Fourth Proportional to 11,123.01, 15,355.94 and 7,725.06

Step by Step Solution

1. Step 1: Write the proportion equation
   11,123.01 : 15,355.94 = 7,725.06 : x
2. Step 2: Convert to fraction form
   11,123.01/15,355.94 = 7,725.06/x
3. Step 3: Cross multiply
   11,123.01x = 15,355.94 × 7,725.06
4. Step 4: Simplify right side
   11,123.01x = 118,625,557.86
5. Step 5: Solve for x
   x = 118,625,557.86/11,123.01
6. Step 6: Final answer
   x = 10,664.88