Finding the Fourth Proportional to 345,978.24, 477,449.76 and 187,002.24

Step by Step Solution

1. Step 1: Write the proportion equation
   345,978.24 : 477,449.76 = 187,002.24 : x
2. Step 2: Convert to fraction form
   345,978.24/477,449.76 = 187,002.24/x
3. Step 3: Cross multiply
   345,978.24x = 477,449.76 × 187,002.24
4. Step 4: Simplify right side
   345,978.24x = 89,284,174,607.46
5. Step 5: Solve for x
   x = 89,284,174,607.46/345,978.24
6. Step 6: Final answer
   x = 258,062.98