Finding the Fourth Proportional to 137,040.10, 189,116.73 and 76,614.10

Step by Step Solution

1. Step 1: Write the proportion equation
   137,040.10 : 189,116.73 = 76,614.10 : x
2. Step 2: Convert to fraction form
   137,040.10/189,116.73 = 76,614.10/x
3. Step 3: Cross multiply
   137,040.10x = 189,116.73 × 76,614.10
4. Step 4: Simplify right side
   137,040.10x = 14,489,008,063.89
5. Step 5: Solve for x
   x = 14,489,008,063.89/137,040.10
6. Step 6: Final answer
   x = 105,728.24