Finding the Fourth Proportional to 405,068,002.32, 558,995,556.06 and 219,429,018.02

Step by Step Solution

1. Step 1: Write the proportion equation
   405,068,002.32 : 558,995,556.06 = 219,429,018.02 : x
2. Step 2: Convert to fraction form
   405,068,002.32/558,995,556.06 = 219,429,018.02/x
3. Step 3: Cross multiply
   405,068,002.32x = 558,995,556.06 × 219,429,018.02
4. Step 4: Simplify right side
   405,068,002.32x = 122,659,845,940,994,656
5. Step 5: Solve for x
   x = 122,659,845,940,994,656/405,068,002.32
6. Step 6: Final answer
   x = 302,812,972.73