Finding the Fourth Proportional to 137,592.79, 189,797.46 and 86,524.72

Step by Step Solution

1. Step 1: Write the proportion equation
   137,592.79 : 189,797.46 = 86,524.72 : x
2. Step 2: Convert to fraction form
   137,592.79/189,797.46 = 86,524.72/x
3. Step 3: Cross multiply
   137,592.79x = 189,797.46 × 86,524.72
4. Step 4: Simplify right side
   137,592.79x = 16,422,172,083.21
5. Step 5: Solve for x
   x = 16,422,172,083.21/137,592.79
6. Step 6: Final answer
   x = 119,353.43