Finding the Fourth Proportional to 139,002.96, 191,818.92 and 75,339.36

Step by Step Solution

1. Step 1: Write the proportion equation
   139,002.96 : 191,818.92 = 75,339.36 : x
2. Step 2: Convert to fraction form
   139,002.96/191,818.92 = 75,339.36/x
3. Step 3: Cross multiply
   139,002.96x = 191,818.92 × 75,339.36
4. Step 4: Simplify right side
   139,002.96x = 14,451,514,668.69
5. Step 5: Solve for x
   x = 14,451,514,668.69/139,002.96
6. Step 6: Final answer
   x = 103,965.52