Finding the Fourth Proportional to 139,924.47, 193,100.31 and 79,494.03

Step by Step Solution

1. Step 1: Write the proportion equation
   139,924.47 : 193,100.31 = 79,494.03 : x
2. Step 2: Convert to fraction form
   139,924.47/193,100.31 = 79,494.03/x
3. Step 3: Cross multiply
   139,924.47x = 193,100.31 × 79,494.03
4. Step 4: Simplify right side
   139,924.47x = 15,350,321,836.15
5. Step 5: Solve for x
   x = 15,350,321,836.15/139,924.47
6. Step 6: Final answer
   x = 109,704.34