Finding the Fourth Proportional to 15,462.42, 21,337.98 and 8,656.38

Step by Step Solution

1. Step 1: Write the proportion equation
   15,462.42 : 21,337.98 = 8,656.38 : x
2. Step 2: Convert to fraction form
   15,462.42/21,337.98 = 8,656.38/x
3. Step 3: Cross multiply
   15,462.42x = 21,337.98 × 8,656.38
4. Step 4: Simplify right side
   15,462.42x = 184,709,663.31
5. Step 5: Solve for x
   x = 184,709,663.31/15,462.42
6. Step 6: Final answer
   x = 11,945.72