Finding the Fourth Proportional to 82,388.00, 123,581.93 and 71,261.61

Step by Step Solution

1. Step 1: Write the proportion equation
   82,388.00 : 123,581.93 = 71,261.61 : x
2. Step 2: Convert to fraction form
   82,388.00/123,581.93 = 71,261.61/x
3. Step 3: Cross multiply
   82,388.00x = 123,581.93 × 71,261.61
4. Step 4: Simplify right side
   82,388.00x = 8,806,646,942.40
5. Step 5: Solve for x
   x = 8,806,646,942.40/82,388.00
6. Step 6: Final answer
   x = 106,892.36