Finding the Fourth Proportional to 359,476.34, 498,174.42 and 354,402.50

Step by Step Solution

1. Step 1: Write the proportion equation
   359,476.34 : 498,174.42 = 354,402.50 : x
2. Step 2: Convert to fraction form
   359,476.34/498,174.42 = 354,402.50/x
3. Step 3: Cross multiply
   359,476.34x = 498,174.42 × 354,402.50
4. Step 4: Simplify right side
   359,476.34x = 176,554,259,884.05
5. Step 5: Solve for x
   x = 176,554,259,884.05/359,476.34
6. Step 6: Final answer
   x = 491,142.92