Finding the Fourth Proportional to 70,614,020.96, 105,920,874.72 and 18,798,636.32

Step by Step Solution

1. Step 1: Write the proportion equation
   70,614,020.96 : 105,920,874.72 = 18,798,636.32 : x
2. Step 2: Convert to fraction form
   70,614,020.96/105,920,874.72 = 18,798,636.32/x
3. Step 3: Cross multiply
   70,614,020.96x = 105,920,874.72 × 18,798,636.32
4. Step 4: Simplify right side
   70,614,020.96x = 1,991,168,002,557,561.75
5. Step 5: Solve for x
   x = 1,991,168,002,557,561.75/70,614,020.96
6. Step 6: Final answer
   x = 28,197,912.76