Finding the Fourth Proportional to 121,617.77, 182,436.38 and 42,749.69

Step by Step Solution

1. Step 1: Write the proportion equation
   121,617.77 : 182,436.38 = 42,749.69 : x
2. Step 2: Convert to fraction form
   121,617.77/182,436.38 = 42,749.69/x
3. Step 3: Cross multiply
   121,617.77x = 182,436.38 × 42,749.69
4. Step 4: Simplify right side
   121,617.77x = 7,799,097,563.79
5. Step 5: Solve for x
   x = 7,799,097,563.79/121,617.77
6. Step 6: Final answer
   x = 64,127.95