Finding the Fourth Proportional to 8,340.10, 12,500.43 and 4,870.06

Step by Step Solution

1. Step 1: Write the proportion equation
   8,340.10 : 12,500.43 = 4,870.06 : x
2. Step 2: Convert to fraction form
   8,340.10/12,500.43 = 4,870.06/x
3. Step 3: Cross multiply
   8,340.10x = 12,500.43 × 4,870.06
4. Step 4: Simplify right side
   8,340.10x = 60,877,844.13
5. Step 5: Solve for x
   x = 60,877,844.13/8,340.10
6. Step 6: Final answer
   x = 7,299.41