Finding the Fourth Proportional to 137,411.72, 189,628.28 and 83,696.83

Step by Step Solution

1. Step 1: Write the proportion equation
   137,411.72 : 189,628.28 = 83,696.83 : x
2. Step 2: Convert to fraction form
   137,411.72/189,628.28 = 83,696.83/x
3. Step 3: Cross multiply
   137,411.72x = 189,628.28 × 83,696.83
4. Step 4: Simplify right side
   137,411.72x = 15,871,286,017.96
5. Step 5: Solve for x
   x = 15,871,286,017.96/137,411.72
6. Step 6: Final answer
   x = 115,501.69