Finding the Fourth Proportional to 139,923.76, 193,096.98 and 76,261.48

Step by Step Solution

1. Step 1: Write the proportion equation
   139,923.76 : 193,096.98 = 76,261.48 : x
2. Step 2: Convert to fraction form
   139,923.76/193,096.98 = 76,261.48/x
3. Step 3: Cross multiply
   139,923.76x = 193,096.98 × 76,261.48
4. Step 4: Simplify right side
   139,923.76x = 14,725,861,478.33
5. Step 5: Solve for x
   x = 14,725,861,478.33/139,923.76
6. Step 6: Final answer
   x = 105,242.04