Finding the Fourth Proportional to 87,042, 120,118.72 and 47,298

Step by Step Solution

1. Step 1: Write the proportion equation
   87,042 : 120,118.72 = 47,298 : x
2. Step 2: Convert to fraction form
   87,042/120,118.72 = 47,298/x
3. Step 3: Cross multiply
   87,042x = 120,118.72 × 47,298
4. Step 4: Simplify right side
   87,042x = 5,681,375,218.56
5. Step 5: Solve for x
   x = 5,681,375,218.56/87,042
6. Step 6: Final answer
   x = 65,271.65