Finding the Fourth Proportional to 185,493.02, 255,701.31 and 145,136.72

Step by Step Solution

1. Step 1: Write the proportion equation
   185,493.02 : 255,701.31 = 145,136.72 : x
2. Step 2: Convert to fraction form
   185,493.02/255,701.31 = 145,136.72/x
3. Step 3: Cross multiply
   185,493.02x = 255,701.31 × 145,136.72
4. Step 4: Simplify right side
   185,493.02x = 37,111,649,433.10
5. Step 5: Solve for x
   x = 37,111,649,433.10/185,493.02
6. Step 6: Final answer
   x = 200,070.33