Finding the Fourth Proportional to 10,259.96, 14,154.96 and 7,870.36

Step by Step Solution

1. Step 1: Write the proportion equation
   10,259.96 : 14,154.96 = 7,870.36 : x
2. Step 2: Convert to fraction form
   10,259.96/14,154.96 = 7,870.36/x
3. Step 3: Cross multiply
   10,259.96x = 14,154.96 × 7,870.36
4. Step 4: Simplify right side
   10,259.96x = 111,404,630.99
5. Step 5: Solve for x
   x = 111,404,630.99/10,259.96
6. Step 6: Final answer
   x = 10,858.19