Finding the Fourth Proportional to 139,783, 209,676.12 and 34,602.88

Step by Step Solution

1. Step 1: Write the proportion equation
   139,783 : 209,676.12 = 34,602.88 : x
2. Step 2: Convert to fraction form
   139,783/209,676.12 = 34,602.88/x
3. Step 3: Cross multiply
   139,783x = 209,676.12 × 34,602.88
4. Step 4: Simplify right side
   139,783x = 7,255,397,619.23
5. Step 5: Solve for x
   x = 7,255,397,619.23/139,783
6. Step 6: Final answer
   x = 51,904.72