Finding the Fourth Proportional to 10,051.21, 15,086.06 and 5,124.52

Step by Step Solution

1. Step 1: Write the proportion equation
   10,051.21 : 15,086.06 = 5,124.52 : x
2. Step 2: Convert to fraction form
   10,051.21/15,086.06 = 5,124.52/x
3. Step 3: Cross multiply
   10,051.21x = 15,086.06 × 5,124.52
4. Step 4: Simplify right side
   10,051.21x = 77,308,816.19
5. Step 5: Solve for x
   x = 77,308,816.19/10,051.21
6. Step 6: Final answer
   x = 7,691.49