Finding the Fourth Proportional to 42,098.63, 63,174.83 and 19,913.31

Step by Step Solution

1. Step 1: Write the proportion equation
   42,098.63 : 63,174.83 = 19,913.31 : x
2. Step 2: Convert to fraction form
   42,098.63/63,174.83 = 19,913.31/x
3. Step 3: Cross multiply
   42,098.63x = 63,174.83 × 19,913.31
4. Step 4: Simplify right side
   42,098.63x = 1,258,019,874.42
5. Step 5: Solve for x
   x = 1,258,019,874.42/42,098.63
6. Step 6: Final answer
   x = 29,882.68