Finding the Fourth Proportional to 139,205.52, 208,827.72 and 69,066

Step by Step Solution

1. Step 1: Write the proportion equation
   139,205.52 : 208,827.72 = 69,066 : x
2. Step 2: Convert to fraction form
   139,205.52/208,827.72 = 69,066/x
3. Step 3: Cross multiply
   139,205.52x = 208,827.72 × 69,066
4. Step 4: Simplify right side
   139,205.52x = 14,422,895,309.52
5. Step 5: Solve for x
   x = 14,422,895,309.52/139,205.52
6. Step 6: Final answer
   x = 103,608.65