Finding the Fourth Proportional to 701,739,978.30, 968,097,185.22 and 423,126,719.64

Step by Step Solution

1. Step 1: Write the proportion equation
   701,739,978.30 : 968,097,185.22 = 423,126,719.64 : x
2. Step 2: Convert to fraction form
   701,739,978.30/968,097,185.22 = 423,126,719.64/x
3. Step 3: Cross multiply
   701,739,978.30x = 968,097,185.22 × 423,126,719.64
4. Step 4: Simplify right side
   701,739,978.30x = 409,627,786,274,856,064
5. Step 5: Solve for x
   x = 409,627,786,274,856,064/701,739,978.30
6. Step 6: Final answer
   x = 583,731,579.99