Finding the Fourth Proportional to 72,152.29, 108,053.47 and 49,903.21

Step by Step Solution

1. Step 1: Write the proportion equation
   72,152.29 : 108,053.47 = 49,903.21 : x
2. Step 2: Convert to fraction form
   72,152.29/108,053.47 = 49,903.21/x
3. Step 3: Cross multiply
   72,152.29x = 108,053.47 × 49,903.21
4. Step 4: Simplify right side
   72,152.29x = 5,392,215,004.64
5. Step 5: Solve for x
   x = 5,392,215,004.64/72,152.29
6. Step 6: Final answer
   x = 74,733.80