Finding the Fourth Proportional to 13,957.61, 19,264.82 and 7,992.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,957.61 : 19,264.82 = 7,992.72 : x
2. Step 2: Convert to fraction form
   13,957.61/19,264.82 = 7,992.72/x
3. Step 3: Cross multiply
   13,957.61x = 19,264.82 × 7,992.72
4. Step 4: Simplify right side
   13,957.61x = 153,978,272.15
5. Step 5: Solve for x
   x = 153,978,272.15/13,957.61
6. Step 6: Final answer
   x = 11,031.85