Finding the Fourth Proportional to 52,224.18, 72,100.78 and 49,235.28

Step by Step Solution

1. Step 1: Write the proportion equation
   52,224.18 : 72,100.78 = 49,235.28 : x
2. Step 2: Convert to fraction form
   52,224.18/72,100.78 = 49,235.28/x
3. Step 3: Cross multiply
   52,224.18x = 72,100.78 × 49,235.28
4. Step 4: Simplify right side
   52,224.18x = 3,549,901,975.00
5. Step 5: Solve for x
   x = 3,549,901,975.00/52,224.18
6. Step 6: Final answer
   x = 67,974.30