Finding the Fourth Proportional to 19,895.63, 29,769.82 and 12,002.72

Step by Step Solution

1. Step 1: Write the proportion equation
   19,895.63 : 29,769.82 = 12,002.72 : x
2. Step 2: Convert to fraction form
   19,895.63/29,769.82 = 12,002.72/x
3. Step 3: Cross multiply
   19,895.63x = 29,769.82 × 12,002.72
4. Step 4: Simplify right side
   19,895.63x = 357,318,635.05
5. Step 5: Solve for x
   x = 357,318,635.05/19,895.63
6. Step 6: Final answer
   x = 17,959.66