Finding the Fourth Proportional to 13,085.07, 19,624.83 and 4,317.90

Step by Step Solution

1. Step 1: Write the proportion equation
   13,085.07 : 19,624.83 = 4,317.90 : x
2. Step 2: Convert to fraction form
   13,085.07/19,624.83 = 4,317.90/x
3. Step 3: Cross multiply
   13,085.07x = 19,624.83 × 4,317.90
4. Step 4: Simplify right side
   13,085.07x = 84,738,053.46
5. Step 5: Solve for x
   x = 84,738,053.46/13,085.07
6. Step 6: Final answer
   x = 6,475.93