Finding the Fourth Proportional to 72,271.35, 99,719.51 and 49,602.02

Step by Step Solution

1. Step 1: Write the proportion equation
   72,271.35 : 99,719.51 = 49,602.02 : x
2. Step 2: Convert to fraction form
   72,271.35/99,719.51 = 49,602.02/x
3. Step 3: Cross multiply
   72,271.35x = 99,719.51 × 49,602.02
4. Step 4: Simplify right side
   72,271.35x = 4,946,288,382.80
5. Step 5: Solve for x
   x = 4,946,288,382.80/72,271.35
6. Step 6: Final answer
   x = 68,440.51