Finding the Fourth Proportional to 10,538.02, 15,804.60 and 7,272.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,538.02 : 15,804.60 = 7,272.10 : x
2. Step 2: Convert to fraction form
   10,538.02/15,804.60 = 7,272.10/x
3. Step 3: Cross multiply
   10,538.02x = 15,804.60 × 7,272.10
4. Step 4: Simplify right side
   10,538.02x = 114,932,631.66
5. Step 5: Solve for x
   x = 114,932,631.66/10,538.02
6. Step 6: Final answer
   x = 10,906.47