Finding the Fourth Proportional to 57,238.19, 78,985.94 and 31,742.54

Step by Step Solution

1. Step 1: Write the proportion equation
   57,238.19 : 78,985.94 = 31,742.54 : x
2. Step 2: Convert to fraction form
   57,238.19/78,985.94 = 31,742.54/x
3. Step 3: Cross multiply
   57,238.19x = 78,985.94 × 31,742.54
4. Step 4: Simplify right side
   57,238.19x = 2,507,214,359.89
5. Step 5: Solve for x
   x = 2,507,214,359.89/57,238.19
6. Step 6: Final answer
   x = 43,803.17