Finding the Fourth Proportional to 139,667.03, 192,740.15 and 76,004.81

Step by Step Solution

1. Step 1: Write the proportion equation
   139,667.03 : 192,740.15 = 76,004.81 : x
2. Step 2: Convert to fraction form
   139,667.03/192,740.15 = 76,004.81/x
3. Step 3: Cross multiply
   139,667.03x = 192,740.15 × 76,004.81
4. Step 4: Simplify right side
   139,667.03x = 14,649,178,100.10
5. Step 5: Solve for x
   x = 14,649,178,100.10/139,667.03
6. Step 6: Final answer
   x = 104,886.44