Finding the Fourth Proportional to 10,030.16, 15,028.12 and 7,103.60

Step by Step Solution

1. Step 1: Write the proportion equation
   10,030.16 : 15,028.12 = 7,103.60 : x
2. Step 2: Convert to fraction form
   10,030.16/15,028.12 = 7,103.60/x
3. Step 3: Cross multiply
   10,030.16x = 15,028.12 × 7,103.60
4. Step 4: Simplify right side
   10,030.16x = 106,753,753.23
5. Step 5: Solve for x
   x = 106,753,753.23/10,030.16
6. Step 6: Final answer
   x = 10,643.28