Finding the Fourth Proportional to 121,684.52, 182,082.72 and 71,788.52

Step by Step Solution

1. Step 1: Write the proportion equation
   121,684.52 : 182,082.72 = 71,788.52 : x
2. Step 2: Convert to fraction form
   121,684.52/182,082.72 = 71,788.52/x
3. Step 3: Cross multiply
   121,684.52x = 182,082.72 × 71,788.52
4. Step 4: Simplify right side
   121,684.52x = 13,071,448,986.37
5. Step 5: Solve for x
   x = 13,071,448,986.37/121,684.52
6. Step 6: Final answer
   x = 107,420.80