Finding the Fourth Proportional to 42,153.62, 63,261.59 and 19,967.03

Step by Step Solution

1. Step 1: Write the proportion equation
   42,153.62 : 63,261.59 = 19,967.03 : x
2. Step 2: Convert to fraction form
   42,153.62/63,261.59 = 19,967.03/x
3. Step 3: Cross multiply
   42,153.62x = 63,261.59 × 19,967.03
4. Step 4: Simplify right side
   42,153.62x = 1,263,145,649.23
5. Step 5: Solve for x
   x = 1,263,145,649.23/42,153.62
6. Step 6: Final answer
   x = 29,965.30