Finding the Fourth Proportional to 42,086.42, 63,042.14 and 19,917.53

Step by Step Solution

1. Step 1: Write the proportion equation
   42,086.42 : 63,042.14 = 19,917.53 : x
2. Step 2: Convert to fraction form
   42,086.42/63,042.14 = 19,917.53/x
3. Step 3: Cross multiply
   42,086.42x = 63,042.14 × 19,917.53
4. Step 4: Simplify right side
   42,086.42x = 1,255,643,449.30
5. Step 5: Solve for x
   x = 1,255,643,449.30/42,086.42
6. Step 6: Final answer
   x = 29,834.89