Finding the Fourth Proportional to 52,111.08, 78,165.92 and 12,668.08

Step by Step Solution

1. Step 1: Write the proportion equation
   52,111.08 : 78,165.92 = 12,668.08 : x
2. Step 2: Convert to fraction form
   52,111.08/78,165.92 = 12,668.08/x
3. Step 3: Cross multiply
   52,111.08x = 78,165.92 × 12,668.08
4. Step 4: Simplify right side
   52,111.08x = 990,212,127.83
5. Step 5: Solve for x
   x = 990,212,127.83/52,111.08
6. Step 6: Final answer
   x = 19,001.95