Finding the Fourth Proportional to 42,980, 59,318.88 and 26,222.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,980 : 59,318.88 = 26,222.72 : x
2. Step 2: Convert to fraction form
   42,980/59,318.88 = 26,222.72/x
3. Step 3: Cross multiply
   42,980x = 59,318.88 × 26,222.72
4. Step 4: Simplify right side
   42,980x = 1,555,502,380.95
5. Step 5: Solve for x
   x = 1,555,502,380.95/42,980
6. Step 6: Final answer
   x = 36,191.31