Finding the Fourth Proportional to 250,978.52, 346,329.06 and 143,531.12

Step by Step Solution

1. Step 1: Write the proportion equation
   250,978.52 : 346,329.06 = 143,531.12 : x
2. Step 2: Convert to fraction form
   250,978.52/346,329.06 = 143,531.12/x
3. Step 3: Cross multiply
   250,978.52x = 346,329.06 × 143,531.12
4. Step 4: Simplify right side
   250,978.52x = 49,708,997,870.35
5. Step 5: Solve for x
   x = 49,708,997,870.35/250,978.52
6. Step 6: Final answer
   x = 198,060.77