Finding the Fourth Proportional to 120,411.92, 180,734.52 and 58,126.16

Step by Step Solution

1. Step 1: Write the proportion equation
   120,411.92 : 180,734.52 = 58,126.16 : x
2. Step 2: Convert to fraction form
   120,411.92/180,734.52 = 58,126.16/x
3. Step 3: Cross multiply
   120,411.92x = 180,734.52 × 58,126.16
4. Step 4: Simplify right side
   120,411.92x = 10,505,403,627.04
5. Step 5: Solve for x
   x = 10,505,403,627.04/120,411.92
6. Step 6: Final answer
   x = 87,245.55