Finding the Fourth Proportional to 89,099.34, 122,810.67 and 71,162.70

Step by Step Solution

1. Step 1: Write the proportion equation
   89,099.34 : 122,810.67 = 71,162.70 : x
2. Step 2: Convert to fraction form
   89,099.34/122,810.67 = 71,162.70/x
3. Step 3: Cross multiply
   89,099.34x = 122,810.67 × 71,162.70
4. Step 4: Simplify right side
   89,099.34x = 8,739,538,866.01
5. Step 5: Solve for x
   x = 8,739,538,866.01/89,099.34
6. Step 6: Final answer
   x = 98,087.58