Finding the Fourth Proportional to 106,367.72, 159,495.12 and 31,477.55

Step by Step Solution

1. Step 1: Write the proportion equation
   106,367.72 : 159,495.12 = 31,477.55 : x
2. Step 2: Convert to fraction form
   106,367.72/159,495.12 = 31,477.55/x
3. Step 3: Cross multiply
   106,367.72x = 159,495.12 × 31,477.55
4. Step 4: Simplify right side
   106,367.72x = 5,020,514,817.08
5. Step 5: Solve for x
   x = 5,020,514,817.08/106,367.72
6. Step 6: Final answer
   x = 47,199.61