Finding the Fourth Proportional to 31,869.72, 47,810.05 and 9,685.34

Step by Step Solution

1. Step 1: Write the proportion equation
   31,869.72 : 47,810.05 = 9,685.34 : x
2. Step 2: Convert to fraction form
   31,869.72/47,810.05 = 9,685.34/x
3. Step 3: Cross multiply
   31,869.72x = 47,810.05 × 9,685.34
4. Step 4: Simplify right side
   31,869.72x = 463,056,505.69
5. Step 5: Solve for x
   x = 463,056,505.69/31,869.72
6. Step 6: Final answer
   x = 14,529.67