Finding the Fourth Proportional to 219,039.25, 302,284.71 and 123,543.76

Step by Step Solution

1. Step 1: Write the proportion equation
   219,039.25 : 302,284.71 = 123,543.76 : x
2. Step 2: Convert to fraction form
   219,039.25/302,284.71 = 123,543.76/x
3. Step 3: Cross multiply
   219,039.25x = 302,284.71 × 123,543.76
4. Step 4: Simplify right side
   219,039.25x = 37,345,389,663.91
5. Step 5: Solve for x
   x = 37,345,389,663.91/219,039.25
6. Step 6: Final answer
   x = 170,496.34