Finding the Fourth Proportional to 47,788.56, 71,602.65 and 31,123.62

Step by Step Solution

1. Step 1: Write the proportion equation
   47,788.56 : 71,602.65 = 31,123.62 : x
2. Step 2: Convert to fraction form
   47,788.56/71,602.65 = 31,123.62/x
3. Step 3: Cross multiply
   47,788.56x = 71,602.65 × 31,123.62
4. Step 4: Simplify right side
   47,788.56x = 2,228,533,669.59
5. Step 5: Solve for x
   x = 2,228,533,669.59/47,788.56
6. Step 6: Final answer
   x = 46,633.20