Finding the Fourth Proportional to 42,157.89, 63,228.72 and 19,662.36

Step by Step Solution

1. Step 1: Write the proportion equation
   42,157.89 : 63,228.72 = 19,662.36 : x
2. Step 2: Convert to fraction form
   42,157.89/63,228.72 = 19,662.36/x
3. Step 3: Cross multiply
   42,157.89x = 63,228.72 × 19,662.36
4. Step 4: Simplify right side
   42,157.89x = 1,243,225,854.98
5. Step 5: Solve for x
   x = 1,243,225,854.98/42,157.89
6. Step 6: Final answer
   x = 29,489.76