Finding the Fourth Proportional to 137,117.58, 189,166.59 and 89,353.50

Step by Step Solution

1. Step 1: Write the proportion equation
   137,117.58 : 189,166.59 = 89,353.50 : x
2. Step 2: Convert to fraction form
   137,117.58/189,166.59 = 89,353.50/x
3. Step 3: Cross multiply
   137,117.58x = 189,166.59 × 89,353.50
4. Step 4: Simplify right side
   137,117.58x = 16,902,696,899.57
5. Step 5: Solve for x
   x = 16,902,696,899.57/137,117.58
6. Step 6: Final answer
   x = 123,271.55