Finding the Fourth Proportional to 49,755.20, 68,613.28 and 42,222.20

Step by Step Solution

1. Step 1: Write the proportion equation
   49,755.20 : 68,613.28 = 42,222.20 : x
2. Step 2: Convert to fraction form
   49,755.20/68,613.28 = 42,222.20/x
3. Step 3: Cross multiply
   49,755.20x = 68,613.28 × 42,222.20
4. Step 4: Simplify right side
   49,755.20x = 2,897,003,182.19
5. Step 5: Solve for x
   x = 2,897,003,182.19/49,755.20
6. Step 6: Final answer
   x = 58,225.14