Finding the Fourth Proportional to 1,109,021,719.42, 1,663,787,703.60 and 372,189,401.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,109,021,719.42 : 1,663,787,703.60 = 372,189,401.74 : x
2. Step 2: Convert to fraction form
   1,109,021,719.42/1,663,787,703.60 = 372,189,401.74/x
3. Step 3: Cross multiply
   1,109,021,719.42x = 1,663,787,703.60 × 372,189,401.74
4. Step 4: Simplify right side
   1,109,021,719.42x = 619,244,150,025,252,480
5. Step 5: Solve for x
   x = 619,244,150,025,252,480/1,109,021,719.42
6. Step 6: Final answer
   x = 558,369,722.78