Finding the Fourth Proportional to 120,856.59, 181,288.44 and 57,683.34

Step by Step Solution

1. Step 1: Write the proportion equation
   120,856.59 : 181,288.44 = 57,683.34 : x
2. Step 2: Convert to fraction form
   120,856.59/181,288.44 = 57,683.34/x
3. Step 3: Cross multiply
   120,856.59x = 181,288.44 × 57,683.34
4. Step 4: Simplify right side
   120,856.59x = 10,457,322,722.59
5. Step 5: Solve for x
   x = 10,457,322,722.59/120,856.59
6. Step 6: Final answer
   x = 86,526.71