Finding the Fourth Proportional to 137,261, 189,290.58 and 89,550.92

Step by Step Solution

1. Step 1: Write the proportion equation
   137,261 : 189,290.58 = 89,550.92 : x
2. Step 2: Convert to fraction form
   137,261/189,290.58 = 89,550.92/x
3. Step 3: Cross multiply
   137,261x = 189,290.58 × 89,550.92
4. Step 4: Simplify right side
   137,261x = 16,951,145,586.33
5. Step 5: Solve for x
   x = 16,951,145,586.33/137,261
6. Step 6: Final answer
   x = 123,495.72