Finding the Fourth Proportional to 147,915,067.98, 221,440,878.45 and 86,315,462.22

Step by Step Solution

1. Step 1: Write the proportion equation
   147,915,067.98 : 221,440,878.45 = 86,315,462.22 : x
2. Step 2: Convert to fraction form
   147,915,067.98/221,440,878.45 = 86,315,462.22/x
3. Step 3: Cross multiply
   147,915,067.98x = 221,440,878.45 × 86,315,462.22
4. Step 4: Simplify right side
   147,915,067.98x = 19,113,771,777,814,584
5. Step 5: Solve for x
   x = 19,113,771,777,814,584/147,915,067.98
6. Step 6: Final answer
   x = 129,221,262.17