Finding the Fourth Proportional to 139,498.26, 192,503.43 and 75,834.42

Step by Step Solution

1. Step 1: Write the proportion equation
   139,498.26 : 192,503.43 = 75,834.42 : x
2. Step 2: Convert to fraction form
   139,498.26/192,503.43 = 75,834.42/x
3. Step 3: Cross multiply
   139,498.26x = 192,503.43 × 75,834.42
4. Step 4: Simplify right side
   139,498.26x = 14,598,385,962.06
5. Step 5: Solve for x
   x = 14,598,385,962.06/139,498.26
6. Step 6: Final answer
   x = 104,649.23