Finding the Fourth Proportional to 137,175.58, 189,260.30 and 89,411.50

Step by Step Solution

1. Step 1: Write the proportion equation
   137,175.58 : 189,260.30 = 89,411.50 : x
2. Step 2: Convert to fraction form
   137,175.58/189,260.30 = 89,411.50/x
3. Step 3: Cross multiply
   137,175.58x = 189,260.30 × 89,411.50
4. Step 4: Simplify right side
   137,175.58x = 16,922,047,313.45
5. Step 5: Solve for x
   x = 16,922,047,313.45/137,175.58
6. Step 6: Final answer
   x = 123,360.49