Finding the Fourth Proportional to 139,981.56, 193,173.54 and 76,322.04

Step by Step Solution

1. Step 1: Write the proportion equation
   139,981.56 : 193,173.54 = 76,322.04 : x
2. Step 2: Convert to fraction form
   139,981.56/193,173.54 = 76,322.04/x
3. Step 3: Cross multiply
   139,981.56x = 193,173.54 × 76,322.04
4. Step 4: Simplify right side
   139,981.56x = 14,743,398,646.82
5. Step 5: Solve for x
   x = 14,743,398,646.82/139,981.56
6. Step 6: Final answer
   x = 105,323.86