Finding the Fourth Proportional to 42,096.58, 63,157.83 and 18,729.70

Step by Step Solution

1. Step 1: Write the proportion equation
   42,096.58 : 63,157.83 = 18,729.70 : x
2. Step 2: Convert to fraction form
   42,096.58/63,157.83 = 18,729.70/x
3. Step 3: Cross multiply
   42,096.58x = 63,157.83 × 18,729.70
4. Step 4: Simplify right side
   42,096.58x = 1,182,927,208.55
5. Step 5: Solve for x
   x = 1,182,927,208.55/42,096.58
6. Step 6: Final answer
   x = 28,100.32