Finding the Fourth Proportional to 35,818.50, 49,430.52 and 21,663.12

Step by Step Solution

1. Step 1: Write the proportion equation
   35,818.50 : 49,430.52 = 21,663.12 : x
2. Step 2: Convert to fraction form
   35,818.50/49,430.52 = 21,663.12/x
3. Step 3: Cross multiply
   35,818.50x = 49,430.52 × 21,663.12
4. Step 4: Simplify right side
   35,818.50x = 1,070,819,286.42
5. Step 5: Solve for x
   x = 1,070,819,286.42/35,818.50
6. Step 6: Final answer
   x = 29,895.70