Finding the Fourth Proportional to 156,998,290.22, 216,653,680.50 and 86,433,196.14

Step by Step Solution

1. Step 1: Write the proportion equation
   156,998,290.22 : 216,653,680.50 = 86,433,196.14 : x
2. Step 2: Convert to fraction form
   156,998,290.22/216,653,680.50 = 86,433,196.14/x
3. Step 3: Cross multiply
   156,998,290.22x = 216,653,680.50 × 86,433,196.14
4. Step 4: Simplify right side
   156,998,290.22x = 18,726,070,061,109,392
5. Step 5: Solve for x
   x = 18,726,070,061,109,392/156,998,290.22
6. Step 6: Final answer
   x = 119,275,630.55