Finding the Fourth Proportional to 369,915.72, 510,428.96 and 224,645.96

Step by Step Solution

1. Step 1: Write the proportion equation
   369,915.72 : 510,428.96 = 224,645.96 : x
2. Step 2: Convert to fraction form
   369,915.72/510,428.96 = 224,645.96/x
3. Step 3: Cross multiply
   369,915.72x = 510,428.96 × 224,645.96
4. Step 4: Simplify right side
   369,915.72x = 114,665,803,731.00
5. Step 5: Solve for x
   x = 114,665,803,731.00/369,915.72
6. Step 6: Final answer
   x = 309,978.19