Finding the Fourth Proportional to 42,155.48, 63,264.34 and 19,968.84

Step by Step Solution

1. Step 1: Write the proportion equation
   42,155.48 : 63,264.34 = 19,968.84 : x
2. Step 2: Convert to fraction form
   42,155.48/63,264.34 = 19,968.84/x
3. Step 3: Cross multiply
   42,155.48x = 63,264.34 × 19,968.84
4. Step 4: Simplify right side
   42,155.48x = 1,263,315,483.17
5. Step 5: Solve for x
   x = 1,263,315,483.17/42,155.48
6. Step 6: Final answer
   x = 29,968.00