Finding the Fourth Proportional to 59,405.32, 89,100.53 and 19,420.95

Step by Step Solution

1. Step 1: Write the proportion equation
   59,405.32 : 89,100.53 = 19,420.95 : x
2. Step 2: Convert to fraction form
   59,405.32/89,100.53 = 19,420.95/x
3. Step 3: Cross multiply
   59,405.32x = 89,100.53 × 19,420.95
4. Step 4: Simplify right side
   59,405.32x = 1,730,416,938.10
5. Step 5: Solve for x
   x = 1,730,416,938.10/59,405.32
6. Step 6: Final answer
   x = 29,128.99