Finding the Fourth Proportional to 42,156.29, 63,265.62 and 19,969.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,156.29 : 63,265.62 = 19,969.72 : x
2. Step 2: Convert to fraction form
   42,156.29/63,265.62 = 19,969.72/x
3. Step 3: Cross multiply
   42,156.29x = 63,265.62 × 19,969.72
4. Step 4: Simplify right side
   42,156.29x = 1,263,396,717.03
5. Step 5: Solve for x
   x = 1,263,396,717.03/42,156.29
6. Step 6: Final answer
   x = 29,969.35