Finding the Fourth Proportional to 10,526.52, 15,809.16 and 7,066.20

Step by Step Solution

1. Step 1: Write the proportion equation
   10,526.52 : 15,809.16 = 7,066.20 : x
2. Step 2: Convert to fraction form
   10,526.52/15,809.16 = 7,066.20/x
3. Step 3: Cross multiply
   10,526.52x = 15,809.16 × 7,066.20
4. Step 4: Simplify right side
   10,526.52x = 111,710,686.39
5. Step 5: Solve for x
   x = 111,710,686.39/10,526.52
6. Step 6: Final answer
   x = 10,612.31