Finding the Fourth Proportional to 59,427.76, 89,085.82 and 19,957.20

Step by Step Solution

1. Step 1: Write the proportion equation
   59,427.76 : 89,085.82 = 19,957.20 : x
2. Step 2: Convert to fraction form
   59,427.76/89,085.82 = 19,957.20/x
3. Step 3: Cross multiply
   59,427.76x = 89,085.82 × 19,957.20
4. Step 4: Simplify right side
   59,427.76x = 1,777,902,981.69
5. Step 5: Solve for x
   x = 1,777,902,981.69/59,427.76
6. Step 6: Final answer
   x = 29,917.05