Finding the Fourth Proportional to 141,209.76, 194,870.01 and 76,679.10

Step by Step Solution

1. Step 1: Write the proportion equation
   141,209.76 : 194,870.01 = 76,679.10 : x
2. Step 2: Convert to fraction form
   141,209.76/194,870.01 = 76,679.10/x
3. Step 3: Cross multiply
   141,209.76x = 194,870.01 × 76,679.10
4. Step 4: Simplify right side
   141,209.76x = 14,942,456,983.79
5. Step 5: Solve for x
   x = 14,942,456,983.79/141,209.76
6. Step 6: Final answer
   x = 105,817.45