Finding the Fourth Proportional to 139,061.35, 191,903.61 and 75,398.68

Step by Step Solution

1. Step 1: Write the proportion equation
   139,061.35 : 191,903.61 = 75,398.68 : x
2. Step 2: Convert to fraction form
   139,061.35/191,903.61 = 75,398.68/x
3. Step 3: Cross multiply
   139,061.35x = 191,903.61 × 75,398.68
4. Step 4: Simplify right side
   139,061.35x = 14,469,278,881.23
5. Step 5: Solve for x
   x = 14,469,278,881.23/139,061.35
6. Step 6: Final answer
   x = 104,049.61