Finding the Fourth Proportional to 209,479.98, 314,269.18 and 69,238.61

Step by Step Solution

1. Step 1: Write the proportion equation
   209,479.98 : 314,269.18 = 69,238.61 : x
2. Step 2: Convert to fraction form
   209,479.98/314,269.18 = 69,238.61/x
3. Step 3: Cross multiply
   209,479.98x = 314,269.18 × 69,238.61
4. Step 4: Simplify right side
   209,479.98x = 21,759,559,444.60
5. Step 5: Solve for x
   x = 21,759,559,444.60/209,479.98
6. Step 6: Final answer
   x = 103,874.17