Finding the Fourth Proportional to 42,219.72, 63,338.94 and 15,924.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,219.72 : 63,338.94 = 15,924.72 : x
2. Step 2: Convert to fraction form
   42,219.72/63,338.94 = 15,924.72/x
3. Step 3: Cross multiply
   42,219.72x = 63,338.94 × 15,924.72
4. Step 4: Simplify right side
   42,219.72x = 1,008,654,884.60
5. Step 5: Solve for x
   x = 1,008,654,884.60/42,219.72
6. Step 6: Final answer
   x = 23,890.61