Finding the Fourth Proportional to 10,297.90, 14,209.83 and 7,312.65

Step by Step Solution

1. Step 1: Write the proportion equation
   10,297.90 : 14,209.83 = 7,312.65 : x
2. Step 2: Convert to fraction form
   10,297.90/14,209.83 = 7,312.65/x
3. Step 3: Cross multiply
   10,297.90x = 14,209.83 × 7,312.65
4. Step 4: Simplify right side
   10,297.90x = 103,911,513.35
5. Step 5: Solve for x
   x = 103,911,513.35/10,297.90
6. Step 6: Final answer
   x = 10,090.55