Finding the Fourth Proportional to 10,051.36, 15,086.38 and 5,124.70

Step by Step Solution

1. Step 1: Write the proportion equation
   10,051.36 : 15,086.38 = 5,124.70 : x
2. Step 2: Convert to fraction form
   10,051.36/15,086.38 = 5,124.70/x
3. Step 3: Cross multiply
   10,051.36x = 15,086.38 × 5,124.70
4. Step 4: Simplify right side
   10,051.36x = 77,313,171.59
5. Step 5: Solve for x
   x = 77,313,171.59/10,051.36
6. Step 6: Final answer
   x = 7,691.81