Finding the Fourth Proportional to 65,013.12, 97,477.62 and 42,759.12

Step by Step Solution

1. Step 1: Write the proportion equation
   65,013.12 : 97,477.62 = 42,759.12 : x
2. Step 2: Convert to fraction form
   65,013.12/97,477.62 = 42,759.12/x
3. Step 3: Cross multiply
   65,013.12x = 97,477.62 × 42,759.12
4. Step 4: Simplify right side
   65,013.12x = 4,168,057,250.89
5. Step 5: Solve for x
   x = 4,168,057,250.89/65,013.12
6. Step 6: Final answer
   x = 64,111.02