Finding the Fourth Proportional to 70,643.16, 105,984.72 and 23,899.68

Step by Step Solution

1. Step 1: Write the proportion equation
   70,643.16 : 105,984.72 = 23,899.68 : x
2. Step 2: Convert to fraction form
   70,643.16/105,984.72 = 23,899.68/x
3. Step 3: Cross multiply
   70,643.16x = 105,984.72 × 23,899.68
4. Step 4: Simplify right side
   70,643.16x = 2,533,000,892.89
5. Step 5: Solve for x
   x = 2,533,000,892.89/70,643.16
6. Step 6: Final answer
   x = 35,856.28