Finding the Fourth Proportional to 372,100.69, 513,436.71 and 219,169.34

Step by Step Solution

1. Step 1: Write the proportion equation
   372,100.69 : 513,436.71 = 219,169.34 : x
2. Step 2: Convert to fraction form
   372,100.69/513,436.71 = 219,169.34/x
3. Step 3: Cross multiply
   372,100.69x = 513,436.71 × 219,169.34
4. Step 4: Simplify right side
   372,100.69x = 112,529,584,862.47
5. Step 5: Solve for x
   x = 112,529,584,862.47/372,100.69
6. Step 6: Final answer
   x = 302,417.03