Finding the Fourth Proportional to 33,781.30, 50,657.37 and 10,402.54

Step by Step Solution

1. Step 1: Write the proportion equation
   33,781.30 : 50,657.37 = 10,402.54 : x
2. Step 2: Convert to fraction form
   33,781.30/50,657.37 = 10,402.54/x
3. Step 3: Cross multiply
   33,781.30x = 50,657.37 × 10,402.54
4. Step 4: Simplify right side
   33,781.30x = 526,965,317.72
5. Step 5: Solve for x
   x = 526,965,317.72/33,781.30
6. Step 6: Final answer
   x = 15,599.32