Finding the Fourth Proportional to 121,910.52, 182,888.52 and 55,355.28

Step by Step Solution

1. Step 1: Write the proportion equation
   121,910.52 : 182,888.52 = 55,355.28 : x
2. Step 2: Convert to fraction form
   121,910.52/182,888.52 = 55,355.28/x
3. Step 3: Cross multiply
   121,910.52x = 182,888.52 × 55,355.28
4. Step 4: Simplify right side
   121,910.52x = 10,123,845,233.39
5. Step 5: Solve for x
   x = 10,123,845,233.39/121,910.52
6. Step 6: Final answer
   x = 83,043.25