Finding the Fourth Proportional to 139,064.46, 191,910.22 and 75,402.42

Step by Step Solution

1. Step 1: Write the proportion equation
   139,064.46 : 191,910.22 = 75,402.42 : x
2. Step 2: Convert to fraction form
   139,064.46/191,910.22 = 75,402.42/x
3. Step 3: Cross multiply
   139,064.46x = 191,910.22 × 75,402.42
4. Step 4: Simplify right side
   139,064.46x = 14,470,495,010.73
5. Step 5: Solve for x
   x = 14,470,495,010.73/139,064.46
6. Step 6: Final answer
   x = 104,056.03