Finding the Fourth Proportional to 141,288.21, 194,977.89 and 76,757.49

Step by Step Solution

1. Step 1: Write the proportion equation
   141,288.21 : 194,977.89 = 76,757.49 : x
2. Step 2: Convert to fraction form
   141,288.21/194,977.89 = 76,757.49/x
3. Step 3: Cross multiply
   141,288.21x = 194,977.89 × 76,757.49
4. Step 4: Simplify right side
   141,288.21x = 14,966,013,441.90
5. Step 5: Solve for x
   x = 14,966,013,441.90/141,288.21
6. Step 6: Final answer
   x = 105,925.42