Finding the Fourth Proportional to 359,081.49, 538,618.98 and 137,465.49

Step by Step Solution

1. Step 1: Write the proportion equation
   359,081.49 : 538,618.98 = 137,465.49 : x
2. Step 2: Convert to fraction form
   359,081.49/538,618.98 = 137,465.49/x
3. Step 3: Cross multiply
   359,081.49x = 538,618.98 × 137,465.49
4. Step 4: Simplify right side
   359,081.49x = 74,041,522,009.00
5. Step 5: Solve for x
   x = 74,041,522,009.00/359,081.49
6. Step 6: Final answer
   x = 206,196.99