Finding the Fourth Proportional to 139,684.32, 192,763.80 and 76,022.10

Step by Step Solution

1. Step 1: Write the proportion equation
   139,684.32 : 192,763.80 = 76,022.10 : x
2. Step 2: Convert to fraction form
   139,684.32/192,763.80 = 76,022.10/x
3. Step 3: Cross multiply
   139,684.32x = 192,763.80 × 76,022.10
4. Step 4: Simplify right side
   139,684.32x = 14,654,308,879.98
5. Step 5: Solve for x
   x = 14,654,308,879.98/139,684.32
6. Step 6: Final answer
   x = 104,910.19