Finding the Fourth Proportional to 35,238.88, 48,628.92 and 21,806.56

Step by Step Solution

1. Step 1: Write the proportion equation
   35,238.88 : 48,628.92 = 21,806.56 : x
2. Step 2: Convert to fraction form
   35,238.88/48,628.92 = 21,806.56/x
3. Step 3: Cross multiply
   35,238.88x = 48,628.92 × 21,806.56
4. Step 4: Simplify right side
   35,238.88x = 1,060,429,461.72
5. Step 5: Solve for x
   x = 1,060,429,461.72/35,238.88
6. Step 6: Final answer
   x = 30,092.60