Finding the Fourth Proportional to 114,235.72, 171,348.72 and 31,129.72

Step by Step Solution

1. Step 1: Write the proportion equation
   114,235.72 : 171,348.72 = 31,129.72 : x
2. Step 2: Convert to fraction form
   114,235.72/171,348.72 = 31,129.72/x
3. Step 3: Cross multiply
   114,235.72x = 171,348.72 × 31,129.72
4. Step 4: Simplify right side
   114,235.72x = 5,334,037,675.96
5. Step 5: Solve for x
   x = 5,334,037,675.96/114,235.72
6. Step 6: Final answer
   x = 46,693.26