Finding the Fourth Proportional to 19,300.96, 28,946.16 and 7,613.92

Step by Step Solution

1. Step 1: Write the proportion equation
   19,300.96 : 28,946.16 = 7,613.92 : x
2. Step 2: Convert to fraction form
   19,300.96/28,946.16 = 7,613.92/x
3. Step 3: Cross multiply
   19,300.96x = 28,946.16 × 7,613.92
4. Step 4: Simplify right side
   19,300.96x = 220,393,746.55
5. Step 5: Solve for x
   x = 220,393,746.55/19,300.96
6. Step 6: Final answer
   x = 11,418.80