Finding the Fourth Proportional to 139,985.85, 209,978.72 and 34,804.82

Step by Step Solution

1. Step 1: Write the proportion equation
   139,985.85 : 209,978.72 = 34,804.82 : x
2. Step 2: Convert to fraction form
   139,985.85/209,978.72 = 34,804.82/x
3. Step 3: Cross multiply
   139,985.85x = 209,978.72 × 34,804.82
4. Step 4: Simplify right side
   139,985.85x = 7,308,271,553.43
5. Step 5: Solve for x
   x = 7,308,271,553.43/139,985.85
6. Step 6: Final answer
   x = 52,207.22