Finding the Fourth Proportional to 74,105.82, 102,325 and 68,438.50

Step by Step Solution

1. Step 1: Write the proportion equation
   74,105.82 : 102,325 = 68,438.50 : x
2. Step 2: Convert to fraction form
   74,105.82/102,325 = 68,438.50/x
3. Step 3: Cross multiply
   74,105.82x = 102,325 × 68,438.50
4. Step 4: Simplify right side
   74,105.82x = 7,002,969,512.50
5. Step 5: Solve for x
   x = 7,002,969,512.50/74,105.82
6. Step 6: Final answer
   x = 94,499.59