Finding the Fourth Proportional to 72,587,616.88, 108,902,682.72 and 21,470,996.88

Step by Step Solution

1. Step 1: Write the proportion equation
   72,587,616.88 : 108,902,682.72 = 21,470,996.88 : x
2. Step 2: Convert to fraction form
   72,587,616.88/108,902,682.72 = 21,470,996.88/x
3. Step 3: Cross multiply
   72,587,616.88x = 108,902,682.72 × 21,470,996.88
4. Step 4: Simplify right side
   72,587,616.88x = 2,338,249,160,904,750
5. Step 5: Solve for x
   x = 2,338,249,160,904,750/72,587,616.88
6. Step 6: Final answer
   x = 32,212,783.14