Finding the Fourth Proportional to 139,860, 193,079.93 and 109,167.30

Step by Step Solution

1. Step 1: Write the proportion equation
   139,860 : 193,079.93 = 109,167.30 : x
2. Step 2: Convert to fraction form
   139,860/193,079.93 = 109,167.30/x
3. Step 3: Cross multiply
   139,860x = 193,079.93 × 109,167.30
4. Step 4: Simplify right side
   139,860x = 21,078,014,096.45
5. Step 5: Solve for x
   x = 21,078,014,096.45/139,860
6. Step 6: Final answer
   x = 150,707.95