Finding the Fourth Proportional to 139,250.71, 208,880.16 and 34,069.69

Step by Step Solution

1. Step 1: Write the proportion equation
   139,250.71 : 208,880.16 = 34,069.69 : x
2. Step 2: Convert to fraction form
   139,250.71/208,880.16 = 34,069.69/x
3. Step 3: Cross multiply
   139,250.71x = 208,880.16 × 34,069.69
4. Step 4: Simplify right side
   139,250.71x = 7,116,482,298.35
5. Step 5: Solve for x
   x = 7,116,482,298.35/139,250.71
6. Step 6: Final answer
   x = 51,105.54