Finding the Fourth Proportional to 121,081.08, 181,575.54 and 55,371

Step by Step Solution

1. Step 1: Write the proportion equation
   121,081.08 : 181,575.54 = 55,371 : x
2. Step 2: Convert to fraction form
   121,081.08/181,575.54 = 55,371/x
3. Step 3: Cross multiply
   121,081.08x = 181,575.54 × 55,371
4. Step 4: Simplify right side
   121,081.08x = 10,054,019,225.34
5. Step 5: Solve for x
   x = 10,054,019,225.34/121,081.08
6. Step 6: Final answer
   x = 83,035.43