Finding the Fourth Proportional to 39,200.72, 58,742.76 and 21,675.56

Step by Step Solution

1. Step 1: Write the proportion equation
   39,200.72 : 58,742.76 = 21,675.56 : x
2. Step 2: Convert to fraction form
   39,200.72/58,742.76 = 21,675.56/x
3. Step 3: Cross multiply
   39,200.72x = 58,742.76 × 21,675.56
4. Step 4: Simplify right side
   39,200.72x = 1,273,282,218.95
5. Step 5: Solve for x
   x = 1,273,282,218.95/39,200.72
6. Step 6: Final answer
   x = 32,481.09