Finding the Fourth Proportional to 11,748.89, 17,624.15 and 3,428.98

Step by Step Solution

1. Step 1: Write the proportion equation
   11,748.89 : 17,624.15 = 3,428.98 : x
2. Step 2: Convert to fraction form
   11,748.89/17,624.15 = 3,428.98/x
3. Step 3: Cross multiply
   11,748.89x = 17,624.15 × 3,428.98
4. Step 4: Simplify right side
   11,748.89x = 60,432,857.87
5. Step 5: Solve for x
   x = 60,432,857.87/11,748.89
6. Step 6: Final answer
   x = 5,143.71