Finding the Fourth Proportional to 59,405.94, 89,101.47 and 19,421.57

Step by Step Solution

1. Step 1: Write the proportion equation
   59,405.94 : 89,101.47 = 19,421.57 : x
2. Step 2: Convert to fraction form
   59,405.94/89,101.47 = 19,421.57/x
3. Step 3: Cross multiply
   59,405.94x = 89,101.47 × 19,421.57
4. Step 4: Simplify right side
   59,405.94x = 1,730,490,436.71
5. Step 5: Solve for x
   x = 1,730,490,436.71/59,405.94
6. Step 6: Final answer
   x = 29,129.92