Finding the Fourth Proportional to 139,501.16, 192,526.62 and 79,065.30

Step by Step Solution

1. Step 1: Write the proportion equation
   139,501.16 : 192,526.62 = 79,065.30 : x
2. Step 2: Convert to fraction form
   139,501.16/192,526.62 = 79,065.30/x
3. Step 3: Cross multiply
   139,501.16x = 192,526.62 × 79,065.30
4. Step 4: Simplify right side
   139,501.16x = 15,222,174,968.29
5. Step 5: Solve for x
   x = 15,222,174,968.29/139,501.16
6. Step 6: Final answer
   x = 109,118.63