Finding the Fourth Proportional to 12,970.53, 17,898.77 and 7,943.27

Step by Step Solution

1. Step 1: Write the proportion equation
   12,970.53 : 17,898.77 = 7,943.27 : x
2. Step 2: Convert to fraction form
   12,970.53/17,898.77 = 7,943.27/x
3. Step 3: Cross multiply
   12,970.53x = 17,898.77 × 7,943.27
4. Step 4: Simplify right side
   12,970.53x = 142,174,693.14
5. Step 5: Solve for x
   x = 142,174,693.14/12,970.53
6. Step 6: Final answer
   x = 10,961.36