Finding the Fourth Proportional to 139,196.51, 192,091.68 and 75,534.30

Step by Step Solution

1. Step 1: Write the proportion equation
   139,196.51 : 192,091.68 = 75,534.30 : x
2. Step 2: Convert to fraction form
   139,196.51/192,091.68 = 75,534.30/x
3. Step 3: Cross multiply
   139,196.51x = 192,091.68 × 75,534.30
4. Step 4: Simplify right side
   139,196.51x = 14,509,510,584.62
5. Step 5: Solve for x
   x = 14,509,510,584.62/139,196.51
6. Step 6: Final answer
   x = 104,237.61