Finding the Fourth Proportional to 12,961.48, 17,886.39 and 7,296.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,961.48 : 17,886.39 = 7,296.34 : x
2. Step 2: Convert to fraction form
   12,961.48/17,886.39 = 7,296.34/x
3. Step 3: Cross multiply
   12,961.48x = 17,886.39 × 7,296.34
4. Step 4: Simplify right side
   12,961.48x = 130,505,182.81
5. Step 5: Solve for x
   x = 130,505,182.81/12,961.48
6. Step 6: Final answer
   x = 10,068.69