Finding the Fourth Proportional to 189,499.15, 284,165.52 and 71,087.46

Step by Step Solution

1. Step 1: Write the proportion equation
   189,499.15 : 284,165.52 = 71,087.46 : x
2. Step 2: Convert to fraction form
   189,499.15/284,165.52 = 71,087.46/x
3. Step 3: Cross multiply
   189,499.15x = 284,165.52 × 71,087.46
4. Step 4: Simplify right side
   189,499.15x = 20,200,605,036.38
5. Step 5: Solve for x
   x = 20,200,605,036.38/189,499.15
6. Step 6: Final answer
   x = 106,599.98