Finding the Fourth Proportional to 56,109.22, 77,430.99 and 30,958.72

Step by Step Solution

1. Step 1: Write the proportion equation
   56,109.22 : 77,430.99 = 30,958.72 : x
2. Step 2: Convert to fraction form
   56,109.22/77,430.99 = 30,958.72/x
3. Step 3: Cross multiply
   56,109.22x = 77,430.99 × 30,958.72
4. Step 4: Simplify right side
   56,109.22x = 2,397,164,338.73
5. Step 5: Solve for x
   x = 2,397,164,338.73/56,109.22
6. Step 6: Final answer
   x = 42,723.18