Finding the Fourth Proportional to 139,103.91, 191,962.44 and 75,441.69

Step by Step Solution

1. Step 1: Write the proportion equation
   139,103.91 : 191,962.44 = 75,441.69 : x
2. Step 2: Convert to fraction form
   139,103.91/191,962.44 = 75,441.69/x
3. Step 3: Cross multiply
   139,103.91x = 191,962.44 × 75,441.69
4. Step 4: Simplify right side
   139,103.91x = 14,481,970,890.12
5. Step 5: Solve for x
   x = 14,481,970,890.12/139,103.91
6. Step 6: Final answer
   x = 104,109.01