Finding the Fourth Proportional to 47,433.61, 65,472.06 and 31,312.72

Step by Step Solution

1. Step 1: Write the proportion equation
   47,433.61 : 65,472.06 = 31,312.72 : x
2. Step 2: Convert to fraction form
   47,433.61/65,472.06 = 31,312.72/x
3. Step 3: Cross multiply
   47,433.61x = 65,472.06 × 31,312.72
4. Step 4: Simplify right side
   47,433.61x = 2,050,108,282.60
5. Step 5: Solve for x
   x = 2,050,108,282.60/47,433.61
6. Step 6: Final answer
   x = 43,220.58