Finding the Fourth Proportional to 190,456.34, 285,688.56 and 64,100.42

Step by Step Solution

1. Step 1: Write the proportion equation
   190,456.34 : 285,688.56 = 64,100.42 : x
2. Step 2: Convert to fraction form
   190,456.34/285,688.56 = 64,100.42/x
3. Step 3: Cross multiply
   190,456.34x = 285,688.56 × 64,100.42
4. Step 4: Simplify right side
   190,456.34x = 18,312,756,685.20
5. Step 5: Solve for x
   x = 18,312,756,685.20/190,456.34
6. Step 6: Final answer
   x = 96,151.99