Finding the Fourth Proportional to 12,961.43, 17,886.84 and 7,296.29

Step by Step Solution

1. Step 1: Write the proportion equation
   12,961.43 : 17,886.84 = 7,296.29 : x
2. Step 2: Convert to fraction form
   12,961.43/17,886.84 = 7,296.29/x
3. Step 3: Cross multiply
   12,961.43x = 17,886.84 × 7,296.29
4. Step 4: Simplify right side
   12,961.43x = 130,507,482.39
5. Step 5: Solve for x
   x = 130,507,482.39/12,961.43
6. Step 6: Final answer
   x = 10,068.91