Finding the Fourth Proportional to 11,505.43, 15,878.70 and 7,032.16

Step by Step Solution

1. Step 1: Write the proportion equation
   11,505.43 : 15,878.70 = 7,032.16 : x
2. Step 2: Convert to fraction form
   11,505.43/15,878.70 = 7,032.16/x
3. Step 3: Cross multiply
   11,505.43x = 15,878.70 × 7,032.16
4. Step 4: Simplify right side
   11,505.43x = 111,661,538.01
5. Step 5: Solve for x
   x = 111,661,538.01/11,505.43
6. Step 6: Final answer
   x = 9,705.12