Finding the Fourth Proportional to 14,111.99, 21,160.42 and 4,748.89

Step by Step Solution

1. Step 1: Write the proportion equation
   14,111.99 : 21,160.42 = 4,748.89 : x
2. Step 2: Convert to fraction form
   14,111.99/21,160.42 = 4,748.89/x
3. Step 3: Cross multiply
   14,111.99x = 21,160.42 × 4,748.89
4. Step 4: Simplify right side
   14,111.99x = 100,488,483.19
5. Step 5: Solve for x
   x = 100,488,483.19/14,111.99
6. Step 6: Final answer
   x = 7,120.79