Finding the Fourth Proportional to 122,820.87, 184,315.91 and 42,859.29

Step by Step Solution

1. Step 1: Write the proportion equation
   122,820.87 : 184,315.91 = 42,859.29 : x
2. Step 2: Convert to fraction form
   122,820.87/184,315.91 = 42,859.29/x
3. Step 3: Cross multiply
   122,820.87x = 184,315.91 × 42,859.29
4. Step 4: Simplify right side
   122,820.87x = 7,899,648,824.01
5. Step 5: Solve for x
   x = 7,899,648,824.01/122,820.87
6. Step 6: Final answer
   x = 64,318.46