Finding the Fourth Proportional to 87,012.96, 120,097.20 and 49,308

Step by Step Solution

1. Step 1: Write the proportion equation
   87,012.96 : 120,097.20 = 49,308 : x
2. Step 2: Convert to fraction form
   87,012.96/120,097.20 = 49,308/x
3. Step 3: Cross multiply
   87,012.96x = 120,097.20 × 49,308
4. Step 4: Simplify right side
   87,012.96x = 5,921,752,737.60
5. Step 5: Solve for x
   x = 5,921,752,737.60/87,012.96
6. Step 6: Final answer
   x = 68,055.99