Finding the Fourth Proportional to 35,225.80, 48,616.61 and 21,801.38

Step by Step Solution

1. Step 1: Write the proportion equation
   35,225.80 : 48,616.61 = 21,801.38 : x
2. Step 2: Convert to fraction form
   35,225.80/48,616.61 = 21,801.38/x
3. Step 3: Cross multiply
   35,225.80x = 48,616.61 × 21,801.38
4. Step 4: Simplify right side
   35,225.80x = 1,059,908,836.83
5. Step 5: Solve for x
   x = 1,059,908,836.83/35,225.80
6. Step 6: Final answer
   x = 30,088.99