Finding the Fourth Proportional to 57,019.18, 78,683.29 and 31,524.06

Step by Step Solution

1. Step 1: Write the proportion equation
   57,019.18 : 78,683.29 = 31,524.06 : x
2. Step 2: Convert to fraction form
   57,019.18/78,683.29 = 31,524.06/x
3. Step 3: Cross multiply
   57,019.18x = 78,683.29 × 31,524.06
4. Step 4: Simplify right side
   57,019.18x = 2,480,416,754.96
5. Step 5: Solve for x
   x = 2,480,416,754.96/57,019.18
6. Step 6: Final answer
   x = 43,501.45