Finding the Fourth Proportional to 139,758.03, 192,924.04 and 105,776

Step by Step Solution

1. Step 1: Write the proportion equation
   139,758.03 : 192,924.04 = 105,776 : x
2. Step 2: Convert to fraction form
   139,758.03/192,924.04 = 105,776/x
3. Step 3: Cross multiply
   139,758.03x = 192,924.04 × 105,776
4. Step 4: Simplify right side
   139,758.03x = 20,406,733,255.04
5. Step 5: Solve for x
   x = 20,406,733,255.04/139,758.03
6. Step 6: Final answer
   x = 146,014.75