Finding the Fourth Proportional to 12,656.37, 18,971.76 and 5,264.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,656.37 : 18,971.76 = 5,264.94 : x
2. Step 2: Convert to fraction form
   12,656.37/18,971.76 = 5,264.94/x
3. Step 3: Cross multiply
   12,656.37x = 18,971.76 × 5,264.94
4. Step 4: Simplify right side
   12,656.37x = 99,885,178.09
5. Step 5: Solve for x
   x = 99,885,178.09/12,656.37
6. Step 6: Final answer
   x = 7,892.09