Finding the Fourth Proportional to 87,434.34, 120,655.89 and 49,194.69

Step by Step Solution

1. Step 1: Write the proportion equation
   87,434.34 : 120,655.89 = 49,194.69 : x
2. Step 2: Convert to fraction form
   87,434.34/120,655.89 = 49,194.69/x
3. Step 3: Cross multiply
   87,434.34x = 120,655.89 × 49,194.69
4. Step 4: Simplify right side
   87,434.34x = 5,935,629,105.22
5. Step 5: Solve for x
   x = 5,935,629,105.22/87,434.34
6. Step 6: Final answer
   x = 67,886.70