Finding the Fourth Proportional to 139,196.30, 192,091.40 and 75,534.09

Step by Step Solution

1. Step 1: Write the proportion equation
   139,196.30 : 192,091.40 = 75,534.09 : x
2. Step 2: Convert to fraction form
   139,196.30/192,091.40 = 75,534.09/x
3. Step 3: Cross multiply
   139,196.30x = 192,091.40 × 75,534.09
4. Step 4: Simplify right side
   139,196.30x = 14,509,449,095.83
5. Step 5: Solve for x
   x = 14,509,449,095.83/139,196.30
6. Step 6: Final answer
   x = 104,237.32