Finding the Fourth Proportional to 744,391.01, 1,116,697.23 and 345,072.15

Step by Step Solution

1. Step 1: Write the proportion equation
   744,391.01 : 1,116,697.23 = 345,072.15 : x
2. Step 2: Convert to fraction form
   744,391.01/1,116,697.23 = 345,072.15/x
3. Step 3: Cross multiply
   744,391.01x = 1,116,697.23 × 345,072.15
4. Step 4: Simplify right side
   744,391.01x = 385,341,114,055.15
5. Step 5: Solve for x
   x = 385,341,114,055.15/744,391.01
6. Step 6: Final answer
   x = 517,659.55