Finding the Fourth Proportional to 185,494.02, 255,702.69 and 145,137.72

Step by Step Solution

1. Step 1: Write the proportion equation
   185,494.02 : 255,702.69 = 145,137.72 : x
2. Step 2: Convert to fraction form
   185,494.02/255,702.69 = 145,137.72/x
3. Step 3: Cross multiply
   185,494.02x = 255,702.69 × 145,137.72
4. Step 4: Simplify right side
   185,494.02x = 37,112,105,424.47
5. Step 5: Solve for x
   x = 37,112,105,424.47/185,494.02
6. Step 6: Final answer
   x = 200,071.71