Finding the Fourth Proportional to 19,997.56, 29,957.34 and 13,051

Step by Step Solution

1. Step 1: Write the proportion equation
   19,997.56 : 29,957.34 = 13,051 : x
2. Step 2: Convert to fraction form
   19,997.56/29,957.34 = 13,051/x
3. Step 3: Cross multiply
   19,997.56x = 29,957.34 × 13,051
4. Step 4: Simplify right side
   19,997.56x = 390,973,244.34
5. Step 5: Solve for x
   x = 390,973,244.34/19,997.56
6. Step 6: Final answer
   x = 19,551.05