Finding the Fourth Proportional to 139,036.20, 191,870.94 and 75,375

Step by Step Solution

1. Step 1: Write the proportion equation
   139,036.20 : 191,870.94 = 75,375 : x
2. Step 2: Convert to fraction form
   139,036.20/191,870.94 = 75,375/x
3. Step 3: Cross multiply
   139,036.20x = 191,870.94 × 75,375
4. Step 4: Simplify right side
   139,036.20x = 14,462,272,102.50
5. Step 5: Solve for x
   x = 14,462,272,102.50/139,036.20
6. Step 6: Final answer
   x = 104,018.03