Finding the Fourth Proportional to 31,834.58, 47,772.59 and 12,113.30

Step by Step Solution

1. Step 1: Write the proportion equation
   31,834.58 : 47,772.59 = 12,113.30 : x
2. Step 2: Convert to fraction form
   31,834.58/47,772.59 = 12,113.30/x
3. Step 3: Cross multiply
   31,834.58x = 47,772.59 × 12,113.30
4. Step 4: Simplify right side
   31,834.58x = 578,683,773.31
5. Step 5: Solve for x
   x = 578,683,773.31/31,834.58
6. Step 6: Final answer
   x = 18,177.84