Finding the Fourth Proportional to 13,112.03, 19,674.88 and 5,212.86

Step by Step Solution

1. Step 1: Write the proportion equation
   13,112.03 : 19,674.88 = 5,212.86 : x
2. Step 2: Convert to fraction form
   13,112.03/19,674.88 = 5,212.86/x
3. Step 3: Cross multiply
   13,112.03x = 19,674.88 × 5,212.86
4. Step 4: Simplify right side
   13,112.03x = 102,562,381.92
5. Step 5: Solve for x
   x = 102,562,381.92/13,112.03
6. Step 6: Final answer
   x = 7,822.00