Finding the Fourth Proportional to 48,061.36, 72,087.18 and 13,004.56

Step by Step Solution

1. Step 1: Write the proportion equation
   48,061.36 : 72,087.18 = 13,004.56 : x
2. Step 2: Convert to fraction form
   48,061.36/72,087.18 = 13,004.56/x
3. Step 3: Cross multiply
   48,061.36x = 72,087.18 × 13,004.56
4. Step 4: Simplify right side
   48,061.36x = 937,462,057.54
5. Step 5: Solve for x
   x = 937,462,057.54/48,061.36
6. Step 6: Final answer
   x = 19,505.52