Finding the Fourth Proportional to 65,025.56, 89,679.12 and 42,356

Step by Step Solution

1. Step 1: Write the proportion equation
   65,025.56 : 89,679.12 = 42,356 : x
2. Step 2: Convert to fraction form
   65,025.56/89,679.12 = 42,356/x
3. Step 3: Cross multiply
   65,025.56x = 89,679.12 × 42,356
4. Step 4: Simplify right side
   65,025.56x = 3,798,448,806.72
5. Step 5: Solve for x
   x = 3,798,448,806.72/65,025.56
6. Step 6: Final answer
   x = 58,414.70