Finding the Fourth Proportional to 39,492.72, 59,285.34 and 31,178.34

Step by Step Solution

1. Step 1: Write the proportion equation
   39,492.72 : 59,285.34 = 31,178.34 : x
2. Step 2: Convert to fraction form
   39,492.72/59,285.34 = 31,178.34/x
3. Step 3: Cross multiply
   39,492.72x = 59,285.34 × 31,178.34
4. Step 4: Simplify right side
   39,492.72x = 1,848,418,487.54
5. Step 5: Solve for x
   x = 1,848,418,487.54/39,492.72
6. Step 6: Final answer
   x = 46,804.03