Finding the Fourth Proportional to 28,127.12, 42,192.42 and 10,362.56

Step by Step Solution

1. Step 1: Write the proportion equation
   28,127.12 : 42,192.42 = 10,362.56 : x
2. Step 2: Convert to fraction form
   28,127.12/42,192.42 = 10,362.56/x
3. Step 3: Cross multiply
   28,127.12x = 42,192.42 × 10,362.56
4. Step 4: Simplify right side
   28,127.12x = 437,221,483.80
5. Step 5: Solve for x
   x = 437,221,483.80/28,127.12
6. Step 6: Final answer
   x = 15,544.48