Finding the Fourth Proportional to 101,017.02, 139,463.22 and 89,808

Step by Step Solution

1. Step 1: Write the proportion equation
   101,017.02 : 139,463.22 = 89,808 : x
2. Step 2: Convert to fraction form
   101,017.02/139,463.22 = 89,808/x
3. Step 3: Cross multiply
   101,017.02x = 139,463.22 × 89,808
4. Step 4: Simplify right side
   101,017.02x = 12,524,912,861.76
5. Step 5: Solve for x
   x = 12,524,912,861.76/101,017.02
6. Step 6: Final answer
   x = 123,988.14