Finding the Fourth Proportional to 65,840.32, 98,738.55 and 28,377

Step by Step Solution

1. Step 1: Write the proportion equation
   65,840.32 : 98,738.55 = 28,377 : x
2. Step 2: Convert to fraction form
   65,840.32/98,738.55 = 28,377/x
3. Step 3: Cross multiply
   65,840.32x = 98,738.55 × 28,377
4. Step 4: Simplify right side
   65,840.32x = 2,801,903,833.35
5. Step 5: Solve for x
   x = 2,801,903,833.35/65,840.32
6. Step 6: Final answer
   x = 42,556.05