Finding the Fourth Proportional to 139,196.57, 192,094.73 and 75,534.21

Step by Step Solution

1. Step 1: Write the proportion equation
   139,196.57 : 192,094.73 = 75,534.21 : x
2. Step 2: Convert to fraction form
   139,196.57/192,094.73 = 75,534.21/x
3. Step 3: Cross multiply
   139,196.57x = 192,094.73 × 75,534.21
4. Step 4: Simplify right side
   139,196.57x = 14,509,723,298.04
5. Step 5: Solve for x
   x = 14,509,723,298.04/139,196.57
6. Step 6: Final answer
   x = 104,239.09