Finding the Fourth Proportional to 12,906.48, 19,364.04 and 5,117.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,906.48 : 19,364.04 = 5,117.52 : x
2. Step 2: Convert to fraction form
   12,906.48/19,364.04 = 5,117.52/x
3. Step 3: Cross multiply
   12,906.48x = 19,364.04 × 5,117.52
4. Step 4: Simplify right side
   12,906.48x = 99,095,861.98
5. Step 5: Solve for x
   x = 99,095,861.98/12,906.48
6. Step 6: Final answer
   x = 7,677.99