Finding the Fourth Proportional to 359,686.89, 536,404.02 and 354,860.34

Step by Step Solution

1. Step 1: Write the proportion equation
   359,686.89 : 536,404.02 = 354,860.34 : x
2. Step 2: Convert to fraction form
   359,686.89/536,404.02 = 354,860.34/x
3. Step 3: Cross multiply
   359,686.89x = 536,404.02 × 354,860.34
4. Step 4: Simplify right side
   359,686.89x = 190,348,512,914.57
5. Step 5: Solve for x
   x = 190,348,512,914.57/359,686.89
6. Step 6: Final answer
   x = 529,206.15