Finding the Fourth Proportional to 10,898.72, 15,043.39 and 7,070.25

Step by Step Solution

1. Step 1: Write the proportion equation
   10,898.72 : 15,043.39 = 7,070.25 : x
2. Step 2: Convert to fraction form
   10,898.72/15,043.39 = 7,070.25/x
3. Step 3: Cross multiply
   10,898.72x = 15,043.39 × 7,070.25
4. Step 4: Simplify right side
   10,898.72x = 106,360,566.88
5. Step 5: Solve for x
   x = 106,360,566.88/10,898.72
6. Step 6: Final answer
   x = 9,759.00