Finding the Fourth Proportional to 59,428.51, 89,086.94 and 19,957.95

Step by Step Solution

1. Step 1: Write the proportion equation
   59,428.51 : 89,086.94 = 19,957.95 : x
2. Step 2: Convert to fraction form
   59,428.51/89,086.94 = 19,957.95/x
3. Step 3: Cross multiply
   59,428.51x = 89,086.94 × 19,957.95
4. Step 4: Simplify right side
   59,428.51x = 1,777,992,694.17
5. Step 5: Solve for x
   x = 1,777,992,694.17/59,428.51
6. Step 6: Final answer
   x = 29,918.18