Finding the Fourth Proportional to 120,542.16, 180,792.72 and 31,796.52

Step by Step Solution

1. Step 1: Write the proportion equation
   120,542.16 : 180,792.72 = 31,796.52 : x
2. Step 2: Convert to fraction form
   120,542.16/180,792.72 = 31,796.52/x
3. Step 3: Cross multiply
   120,542.16x = 180,792.72 × 31,796.52
4. Step 4: Simplify right side
   120,542.16x = 5,748,579,337.33
5. Step 5: Solve for x
   x = 5,748,579,337.33/120,542.16
6. Step 6: Final answer
   x = 47,689.37