Finding the Fourth Proportional to 106,060.57, 159,090.90 and 31,180.72

Step by Step Solution

1. Step 1: Write the proportion equation
   106,060.57 : 159,090.90 = 31,180.72 : x
2. Step 2: Convert to fraction form
   106,060.57/159,090.90 = 31,180.72/x
3. Step 3: Cross multiply
   106,060.57x = 159,090.90 × 31,180.72
4. Step 4: Simplify right side
   106,060.57x = 4,960,568,807.45
5. Step 5: Solve for x
   x = 4,960,568,807.45/106,060.57
6. Step 6: Final answer
   x = 46,771.09