Finding the Fourth Proportional to 13,970.72, 19,279.32 and 7,682.96

Step by Step Solution

1. Step 1: Write the proportion equation
   13,970.72 : 19,279.32 = 7,682.96 : x
2. Step 2: Convert to fraction form
   13,970.72/19,279.32 = 7,682.96/x
3. Step 3: Cross multiply
   13,970.72x = 19,279.32 × 7,682.96
4. Step 4: Simplify right side
   13,970.72x = 148,122,244.39
5. Step 5: Solve for x
   x = 148,122,244.39/13,970.72
6. Step 6: Final answer
   x = 10,602.33