Finding the Fourth Proportional to 12,971.76, 19,457.37 and 8,801.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,971.76 : 19,457.37 = 8,801.34 : x
2. Step 2: Convert to fraction form
   12,971.76/19,457.37 = 8,801.34/x
3. Step 3: Cross multiply
   12,971.76x = 19,457.37 × 8,801.34
4. Step 4: Simplify right side
   12,971.76x = 171,250,928.88
5. Step 5: Solve for x
   x = 171,250,928.88/12,971.76
6. Step 6: Final answer
   x = 13,201.83