Finding the Fourth Proportional to 139,016.08, 191,843.40 and 75,354.94

Step by Step Solution

1. Step 1: Write the proportion equation
   139,016.08 : 191,843.40 = 75,354.94 : x
2. Step 2: Convert to fraction form
   139,016.08/191,843.40 = 75,354.94/x
3. Step 3: Cross multiply
   139,016.08x = 191,843.40 × 75,354.94
4. Step 4: Simplify right side
   139,016.08x = 14,456,347,896.40
5. Step 5: Solve for x
   x = 14,456,347,896.40/139,016.08
6. Step 6: Final answer
   x = 103,990.47