Finding the Fourth Proportional to 8,997.78, 13,499.46 and 3,154.98

Step by Step Solution

1. Step 1: Write the proportion equation
   8,997.78 : 13,499.46 = 3,154.98 : x
2. Step 2: Convert to fraction form
   8,997.78/13,499.46 = 3,154.98/x
3. Step 3: Cross multiply
   8,997.78x = 13,499.46 × 3,154.98
4. Step 4: Simplify right side
   8,997.78x = 42,590,526.31
5. Step 5: Solve for x
   x = 42,590,526.31/8,997.78
6. Step 6: Final answer
   x = 4,733.45