Finding the Fourth Proportional to 194,401.67, 291,641.99 and 82,082.21

Step by Step Solution

1. Step 1: Write the proportion equation
   194,401.67 : 291,641.99 = 82,082.21 : x
2. Step 2: Convert to fraction form
   194,401.67/291,641.99 = 82,082.21/x
3. Step 3: Cross multiply
   194,401.67x = 291,641.99 × 82,082.21
4. Step 4: Simplify right side
   194,401.67x = 23,938,617,199.38
5. Step 5: Solve for x
   x = 23,938,617,199.38/194,401.67
6. Step 6: Final answer
   x = 123,139.98