Finding the Fourth Proportional to 10,130.59, 15,201.23 and 7,188.05

Step by Step Solution

1. Step 1: Write the proportion equation
   10,130.59 : 15,201.23 = 7,188.05 : x
2. Step 2: Convert to fraction form
   10,130.59/15,201.23 = 7,188.05/x
3. Step 3: Cross multiply
   10,130.59x = 15,201.23 × 7,188.05
4. Step 4: Simplify right side
   10,130.59x = 109,267,162.27
5. Step 5: Solve for x
   x = 109,267,162.27/10,130.59
6. Step 6: Final answer
   x = 10,785.87