Finding the Fourth Proportional to 13,019.78, 17,967.20 and 7,051.32

Step by Step Solution

1. Step 1: Write the proportion equation
   13,019.78 : 17,967.20 = 7,051.32 : x
2. Step 2: Convert to fraction form
   13,019.78/17,967.20 = 7,051.32/x
3. Step 3: Cross multiply
   13,019.78x = 17,967.20 × 7,051.32
4. Step 4: Simplify right side
   13,019.78x = 126,692,476.70
5. Step 5: Solve for x
   x = 126,692,476.70/13,019.78
6. Step 6: Final answer
   x = 9,730.77