Finding the Fourth Proportional to 189,498.15, 284,164.02 and 71,086.46

Step by Step Solution

1. Step 1: Write the proportion equation
   189,498.15 : 284,164.02 = 71,086.46 : x
2. Step 2: Convert to fraction form
   189,498.15/284,164.02 = 71,086.46/x
3. Step 3: Cross multiply
   189,498.15x = 284,164.02 × 71,086.46
4. Step 4: Simplify right side
   189,498.15x = 20,200,212,820.35
5. Step 5: Solve for x
   x = 20,200,212,820.35/189,498.15
6. Step 6: Final answer
   x = 106,598.47