Finding the Fourth Proportional to 104,987.36, 157,448.72 and 30,087.42

Step by Step Solution

1. Step 1: Write the proportion equation
   104,987.36 : 157,448.72 = 30,087.42 : x
2. Step 2: Convert to fraction form
   104,987.36/157,448.72 = 30,087.42/x
3. Step 3: Cross multiply
   104,987.36x = 157,448.72 × 30,087.42
4. Step 4: Simplify right side
   104,987.36x = 4,737,225,616.67
5. Step 5: Solve for x
   x = 4,737,225,616.67/104,987.36
6. Step 6: Final answer
   x = 45,121.87