Finding the Fourth Proportional to 139,679.60, 192,754.15 and 76,016.03

Step by Step Solution

1. Step 1: Write the proportion equation
   139,679.60 : 192,754.15 = 76,016.03 : x
2. Step 2: Convert to fraction form
   139,679.60/192,754.15 = 76,016.03/x
3. Step 3: Cross multiply
   139,679.60x = 192,754.15 × 76,016.03
4. Step 4: Simplify right side
   139,679.60x = 14,652,404,095.21
5. Step 5: Solve for x
   x = 14,652,404,095.21/139,679.60
6. Step 6: Final answer
   x = 104,900.10