Finding the Fourth Proportional to 170,861.03, 256,145.73 and 120,783.59

Step by Step Solution

1. Step 1: Write the proportion equation
   170,861.03 : 256,145.73 = 120,783.59 : x
2. Step 2: Convert to fraction form
   170,861.03/256,145.73 = 120,783.59/x
3. Step 3: Cross multiply
   170,861.03x = 256,145.73 × 120,783.59
4. Step 4: Simplify right side
   170,861.03x = 30,938,200,832.57
5. Step 5: Solve for x
   x = 30,938,200,832.57/170,861.03
6. Step 6: Final answer
   x = 181,072.31