Finding the Fourth Proportional to 139,494.10, 192,499.59 and 75,833.50

Step by Step Solution

1. Step 1: Write the proportion equation
   139,494.10 : 192,499.59 = 75,833.50 : x
2. Step 2: Convert to fraction form
   139,494.10/192,499.59 = 75,833.50/x
3. Step 3: Cross multiply
   139,494.10x = 192,499.59 × 75,833.50
4. Step 4: Simplify right side
   139,494.10x = 14,597,917,658.27
5. Step 5: Solve for x
   x = 14,597,917,658.27/139,494.10
6. Step 6: Final answer
   x = 104,649.00