Finding the Fourth Proportional to 139,084.64, 208,627.12 and 50,317.35

Step by Step Solution

1. Step 1: Write the proportion equation
   139,084.64 : 208,627.12 = 50,317.35 : x
2. Step 2: Convert to fraction form
   139,084.64/208,627.12 = 50,317.35/x
3. Step 3: Cross multiply
   139,084.64x = 208,627.12 × 50,317.35
4. Step 4: Simplify right side
   139,084.64x = 10,497,563,564.95
5. Step 5: Solve for x
   x = 10,497,563,564.95/139,084.64
6. Step 6: Final answer
   x = 75,476.08