Finding the Fourth Proportional to 31,010.54, 42,798.63 and 30,166.15

Step by Step Solution

1. Step 1: Write the proportion equation
   31,010.54 : 42,798.63 = 30,166.15 : x
2. Step 2: Convert to fraction form
   31,010.54/42,798.63 = 30,166.15/x
3. Step 3: Cross multiply
   31,010.54x = 42,798.63 × 30,166.15
4. Step 4: Simplify right side
   31,010.54x = 1,291,069,527.55
5. Step 5: Solve for x
   x = 1,291,069,527.55/31,010.54
6. Step 6: Final answer
   x = 41,633.26