Finding the Fourth Proportional to 153,768, 230,667.12 and 42,960

Step by Step Solution

1. Step 1: Write the proportion equation
   153,768 : 230,667.12 = 42,960 : x
2. Step 2: Convert to fraction form
   153,768/230,667.12 = 42,960/x
3. Step 3: Cross multiply
   153,768x = 230,667.12 × 42,960
4. Step 4: Simplify right side
   153,768x = 9,909,459,475.20
5. Step 5: Solve for x
   x = 9,909,459,475.20/153,768
6. Step 6: Final answer
   x = 64,444.22