Finding the Fourth Proportional to 52,715.68, 72,738.48 and 30,355.36

Step by Step Solution

1. Step 1: Write the proportion equation
   52,715.68 : 72,738.48 = 30,355.36 : x
2. Step 2: Convert to fraction form
   52,715.68/72,738.48 = 30,355.36/x
3. Step 3: Cross multiply
   52,715.68x = 72,738.48 × 30,355.36
4. Step 4: Simplify right side
   52,715.68x = 2,208,002,746.25
5. Step 5: Solve for x
   x = 2,208,002,746.25/52,715.68
6. Step 6: Final answer
   x = 41,885.12