Finding the Fourth Proportional to 39,965.16, 55,151.61 and 22,060.17

Step by Step Solution

1. Step 1: Write the proportion equation
   39,965.16 : 55,151.61 = 22,060.17 : x
2. Step 2: Convert to fraction form
   39,965.16/55,151.61 = 22,060.17/x
3. Step 3: Cross multiply
   39,965.16x = 55,151.61 × 22,060.17
4. Step 4: Simplify right side
   39,965.16x = 1,216,653,892.37
5. Step 5: Solve for x
   x = 1,216,653,892.37/39,965.16
6. Step 6: Final answer
   x = 30,442.86