Finding the Fourth Proportional to 72,446.64, 108,660.72 and 28,043.01

Step by Step Solution

1. Step 1: Write the proportion equation
   72,446.64 : 108,660.72 = 28,043.01 : x
2. Step 2: Convert to fraction form
   72,446.64/108,660.72 = 28,043.01/x
3. Step 3: Cross multiply
   72,446.64x = 108,660.72 × 28,043.01
4. Step 4: Simplify right side
   72,446.64x = 3,047,173,657.57
5. Step 5: Solve for x
   x = 3,047,173,657.57/72,446.64
6. Step 6: Final answer
   x = 42,060.94