Finding the Fourth Proportional to 65,074.30, 89,804.62 and 42,427.92

Step by Step Solution

1. Step 1: Write the proportion equation
   65,074.30 : 89,804.62 = 42,427.92 : x
2. Step 2: Convert to fraction form
   65,074.30/89,804.62 = 42,427.92/x
3. Step 3: Cross multiply
   65,074.30x = 89,804.62 × 42,427.92
4. Step 4: Simplify right side
   65,074.30x = 3,810,223,232.99
5. Step 5: Solve for x
   x = 3,810,223,232.99/65,074.30
6. Step 6: Final answer
   x = 58,551.89