Finding the Fourth Proportional to 47,980.52, 71,604.32 and 42,731.72

Step by Step Solution

1. Step 1: Write the proportion equation
   47,980.52 : 71,604.32 = 42,731.72 : x
2. Step 2: Convert to fraction form
   47,980.52/71,604.32 = 42,731.72/x
3. Step 3: Cross multiply
   47,980.52x = 71,604.32 × 42,731.72
4. Step 4: Simplify right side
   47,980.52x = 3,059,775,753.03
5. Step 5: Solve for x
   x = 3,059,775,753.03/47,980.52
6. Step 6: Final answer
   x = 63,771.21