Finding the Fourth Proportional to 121,554.47, 182,413.72 and 42,669.38

Step by Step Solution

1. Step 1: Write the proportion equation
   121,554.47 : 182,413.72 = 42,669.38 : x
2. Step 2: Convert to fraction form
   121,554.47/182,413.72 = 42,669.38/x
3. Step 3: Cross multiply
   121,554.47x = 182,413.72 × 42,669.38
4. Step 4: Simplify right side
   121,554.47x = 7,783,480,845.26
5. Step 5: Solve for x
   x = 7,783,480,845.26/121,554.47
6. Step 6: Final answer
   x = 64,032.86