Finding the Fourth Proportional to 145,483.07, 200,736.53 and 85,042.02

Step by Step Solution

1. Step 1: Write the proportion equation
   145,483.07 : 200,736.53 = 85,042.02 : x
2. Step 2: Convert to fraction form
   145,483.07/200,736.53 = 85,042.02/x
3. Step 3: Cross multiply
   145,483.07x = 200,736.53 × 85,042.02
4. Step 4: Simplify right side
   145,483.07x = 17,071,039,573.78
5. Step 5: Solve for x
   x = 17,071,039,573.78/145,483.07
6. Step 6: Final answer
   x = 117,340.39