Finding the Fourth Proportional to 139,040.39, 191,870.56 and 75,376.82

Step by Step Solution

1. Step 1: Write the proportion equation
   139,040.39 : 191,870.56 = 75,376.82 : x
2. Step 2: Convert to fraction form
   139,040.39/191,870.56 = 75,376.82/x
3. Step 3: Cross multiply
   139,040.39x = 191,870.56 × 75,376.82
4. Step 4: Simplify right side
   139,040.39x = 14,462,592,664.42
5. Step 5: Solve for x
   x = 14,462,592,664.42/139,040.39
6. Step 6: Final answer
   x = 104,017.20