Finding the Fourth Proportional to 139,984.29, 193,179.24 and 76,323.15

Step by Step Solution

1. Step 1: Write the proportion equation
   139,984.29 : 193,179.24 = 76,323.15 : x
2. Step 2: Convert to fraction form
   139,984.29/193,179.24 = 76,323.15/x
3. Step 3: Cross multiply
   139,984.29x = 193,179.24 × 76,323.15
4. Step 4: Simplify right side
   139,984.29x = 14,744,048,111.41
5. Step 5: Solve for x
   x = 14,744,048,111.41/139,984.29
6. Step 6: Final answer
   x = 105,326.45