Finding the Fourth Proportional to 355,061.43, 489,987.50 and 193,913.55

Step by Step Solution

1. Step 1: Write the proportion equation
   355,061.43 : 489,987.50 = 193,913.55 : x
2. Step 2: Convert to fraction form
   355,061.43/489,987.50 = 193,913.55/x
3. Step 3: Cross multiply
   355,061.43x = 489,987.50 × 193,913.55
4. Step 4: Simplify right side
   355,061.43x = 95,015,214,611.06
5. Step 5: Solve for x
   x = 95,015,214,611.06/355,061.43
6. Step 6: Final answer
   x = 267,602.19