Finding the Fourth Proportional to 31,967.72, 47,945.80 and 8,588.69

Step by Step Solution

1. Step 1: Write the proportion equation
   31,967.72 : 47,945.80 = 8,588.69 : x
2. Step 2: Convert to fraction form
   31,967.72/47,945.80 = 8,588.69/x
3. Step 3: Cross multiply
   31,967.72x = 47,945.80 × 8,588.69
4. Step 4: Simplify right side
   31,967.72x = 411,791,613.00
5. Step 5: Solve for x
   x = 411,791,613.00/31,967.72
6. Step 6: Final answer
   x = 12,881.48