Finding the Fourth Proportional to 141,758.89, 212,639.90 and 60,694.99

Step by Step Solution

1. Step 1: Write the proportion equation
   141,758.89 : 212,639.90 = 60,694.99 : x
2. Step 2: Convert to fraction form
   141,758.89/212,639.90 = 60,694.99/x
3. Step 3: Cross multiply
   141,758.89x = 212,639.90 × 60,694.99
4. Step 4: Simplify right side
   141,758.89x = 12,906,175,769.03
5. Step 5: Solve for x
   x = 12,906,175,769.03/141,758.89
6. Step 6: Final answer
   x = 91,043.15