Finding the Fourth Proportional to 11,780.18, 17,625.52 and 7,261.06

Step by Step Solution

1. Step 1: Write the proportion equation
   11,780.18 : 17,625.52 = 7,261.06 : x
2. Step 2: Convert to fraction form
   11,780.18/17,625.52 = 7,261.06/x
3. Step 3: Cross multiply
   11,780.18x = 17,625.52 × 7,261.06
4. Step 4: Simplify right side
   11,780.18x = 127,979,833.82
5. Step 5: Solve for x
   x = 127,979,833.82/11,780.18
6. Step 6: Final answer
   x = 10,864.00