Finding the Fourth Proportional to 59,172.58, 88,739.70 and 19,719.10

Step by Step Solution

1. Step 1: Write the proportion equation
   59,172.58 : 88,739.70 = 19,719.10 : x
2. Step 2: Convert to fraction form
   59,172.58/88,739.70 = 19,719.10/x
3. Step 3: Cross multiply
   59,172.58x = 88,739.70 × 19,719.10
4. Step 4: Simplify right side
   59,172.58x = 1,749,867,018.27
5. Step 5: Solve for x
   x = 1,749,867,018.27/59,172.58
6. Step 6: Final answer
   x = 29,572.26