Finding the Fourth Proportional to 137,150.72, 189,271.79 and 76,731.81

Step by Step Solution

1. Step 1: Write the proportion equation
   137,150.72 : 189,271.79 = 76,731.81 : x
2. Step 2: Convert to fraction form
   137,150.72/189,271.79 = 76,731.81/x
3. Step 3: Cross multiply
   137,150.72x = 189,271.79 × 76,731.81
4. Step 4: Simplify right side
   137,150.72x = 14,523,166,222.96
5. Step 5: Solve for x
   x = 14,523,166,222.96/137,150.72
6. Step 6: Final answer
   x = 105,892.02