Finding the Fourth Proportional to 180,789.39, 271,185.71 and 47,688.57

Step by Step Solution

1. Step 1: Write the proportion equation
   180,789.39 : 271,185.71 = 47,688.57 : x
2. Step 2: Convert to fraction form
   180,789.39/271,185.71 = 47,688.57/x
3. Step 3: Cross multiply
   180,789.39x = 271,185.71 × 47,688.57
4. Step 4: Simplify right side
   180,789.39x = 12,932,458,475.89
5. Step 5: Solve for x
   x = 12,932,458,475.89/180,789.39
6. Step 6: Final answer
   x = 71,533.28