Finding the Fourth Proportional to 139,225.25, 208,484.60 and 116,676.63

Step by Step Solution

1. Step 1: Write the proportion equation
   139,225.25 : 208,484.60 = 116,676.63 : x
2. Step 2: Convert to fraction form
   139,225.25/208,484.60 = 116,676.63/x
3. Step 3: Cross multiply
   139,225.25x = 208,484.60 × 116,676.63
4. Step 4: Simplify right side
   139,225.25x = 24,325,279,951.51
5. Step 5: Solve for x
   x = 24,325,279,951.51/139,225.25
6. Step 6: Final answer
   x = 174,718.89