Finding the Fourth Proportional to 65,389.54, 90,214.33 and 42,741.58

Step by Step Solution

1. Step 1: Write the proportion equation
   65,389.54 : 90,214.33 = 42,741.58 : x
2. Step 2: Convert to fraction form
   65,389.54/90,214.33 = 42,741.58/x
3. Step 3: Cross multiply
   65,389.54x = 90,214.33 × 42,741.58
4. Step 4: Simplify right side
   65,389.54x = 3,855,903,002.84
5. Step 5: Solve for x
   x = 3,855,903,002.84/65,389.54
6. Step 6: Final answer
   x = 58,968.19