Finding the Fourth Proportional to 10,128.04, 15,166.06 and 7,003.73

Step by Step Solution

1. Step 1: Write the proportion equation
   10,128.04 : 15,166.06 = 7,003.73 : x
2. Step 2: Convert to fraction form
   10,128.04/15,166.06 = 7,003.73/x
3. Step 3: Cross multiply
   10,128.04x = 15,166.06 × 7,003.73
4. Step 4: Simplify right side
   10,128.04x = 106,219,009.81
5. Step 5: Solve for x
   x = 106,219,009.81/10,128.04
6. Step 6: Final answer
   x = 10,487.62