Finding the Fourth Proportional to 7,900.17, 10,842.06 and 7,152.49

Step by Step Solution

1. Step 1: Write the proportion equation
   7,900.17 : 10,842.06 = 7,152.49 : x
2. Step 2: Convert to fraction form
   7,900.17/10,842.06 = 7,152.49/x
3. Step 3: Cross multiply
   7,900.17x = 10,842.06 × 7,152.49
4. Step 4: Simplify right side
   7,900.17x = 77,547,725.73
5. Step 5: Solve for x
   x = 77,547,725.73/7,900.17
6. Step 6: Final answer
   x = 9,815.96