Finding the Fourth Proportional to 121,976.01, 182,981.03 and 55,432.89

Step by Step Solution

1. Step 1: Write the proportion equation
   121,976.01 : 182,981.03 = 55,432.89 : x
2. Step 2: Convert to fraction form
   121,976.01/182,981.03 = 55,432.89/x
3. Step 3: Cross multiply
   121,976.01x = 182,981.03 × 55,432.89
4. Step 4: Simplify right side
   121,976.01x = 10,143,167,030.91
5. Step 5: Solve for x
   x = 10,143,167,030.91/121,976.01
6. Step 6: Final answer
   x = 83,157.07