Finding the Fourth Proportional to 35,820.50, 49,433.28 and 21,665.12

Step by Step Solution

1. Step 1: Write the proportion equation
   35,820.50 : 49,433.28 = 21,665.12 : x
2. Step 2: Convert to fraction form
   35,820.50/49,433.28 = 21,665.12/x
3. Step 3: Cross multiply
   35,820.50x = 49,433.28 × 21,665.12
4. Step 4: Simplify right side
   35,820.50x = 1,070,977,943.19
5. Step 5: Solve for x
   x = 1,070,977,943.19/35,820.50
6. Step 6: Final answer
   x = 29,898.46