Finding the Fourth Proportional to 122,390.78, 183,544.59 and 42,410.08

Step by Step Solution

1. Step 1: Write the proportion equation
   122,390.78 : 183,544.59 = 42,410.08 : x
2. Step 2: Convert to fraction form
   122,390.78/183,544.59 = 42,410.08/x
3. Step 3: Cross multiply
   122,390.78x = 183,544.59 × 42,410.08
4. Step 4: Simplify right side
   122,390.78x = 7,784,140,745.47
5. Step 5: Solve for x
   x = 7,784,140,745.47/122,390.78
6. Step 6: Final answer
   x = 63,600.71