Finding the Fourth Proportional to 137,096.88, 189,192.56 and 76,667.60

Step by Step Solution

1. Step 1: Write the proportion equation
   137,096.88 : 189,192.56 = 76,667.60 : x
2. Step 2: Convert to fraction form
   137,096.88/189,192.56 = 76,667.60/x
3. Step 3: Cross multiply
   137,096.88x = 189,192.56 × 76,667.60
4. Step 4: Simplify right side
   137,096.88x = 14,504,939,513.06
5. Step 5: Solve for x
   x = 14,504,939,513.06/137,096.88
6. Step 6: Final answer
   x = 105,800.65