Finding the Fourth Proportional to 31,788.78, 47,654.82 and 12,053.94

Step by Step Solution

1. Step 1: Write the proportion equation
   31,788.78 : 47,654.82 = 12,053.94 : x
2. Step 2: Convert to fraction form
   31,788.78/47,654.82 = 12,053.94/x
3. Step 3: Cross multiply
   31,788.78x = 47,654.82 × 12,053.94
4. Step 4: Simplify right side
   31,788.78x = 574,428,340.99
5. Step 5: Solve for x
   x = 574,428,340.99/31,788.78
6. Step 6: Final answer
   x = 18,070.16