Finding the Fourth Proportional to 139,789.98, 192,909.33 and 76,127.22

Step by Step Solution

1. Step 1: Write the proportion equation
   139,789.98 : 192,909.33 = 76,127.22 : x
2. Step 2: Convert to fraction form
   139,789.98/192,909.33 = 76,127.22/x
3. Step 3: Cross multiply
   139,789.98x = 192,909.33 × 76,127.22
4. Step 4: Simplify right side
   139,789.98x = 14,685,651,004.96
5. Step 5: Solve for x
   x = 14,685,651,004.96/139,789.98
6. Step 6: Final answer
   x = 105,055.10