Finding the Fourth Proportional to 55,365, 76,403.78 and 30,214.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,365 : 76,403.78 = 30,214.50 : x
2. Step 2: Convert to fraction form
   55,365/76,403.78 = 30,214.50/x
3. Step 3: Cross multiply
   55,365x = 76,403.78 × 30,214.50
4. Step 4: Simplify right side
   55,365x = 2,308,501,859.74
5. Step 5: Solve for x
   x = 2,308,501,859.74/55,365
6. Step 6: Final answer
   x = 41,696.05