Finding the Fourth Proportional to 224,656,892.10, 336,985,338.15 and 199,147,724.10

Step by Step Solution

1. Step 1: Write the proportion equation
   224,656,892.10 : 336,985,338.15 = 199,147,724.10 : x
2. Step 2: Convert to fraction form
   224,656,892.10/336,985,338.15 = 199,147,724.10/x
3. Step 3: Cross multiply
   224,656,892.10x = 336,985,338.15 × 199,147,724.10
4. Step 4: Simplify right side
   224,656,892.10x = 67,109,863,147,641,400
5. Step 5: Solve for x
   x = 67,109,863,147,641,400/224,656,892.10
6. Step 6: Final answer
   x = 298,721,586.15