Finding the Fourth Proportional to 139,985.26, 209,978.69 and 34,804.23

Step by Step Solution

1. Step 1: Write the proportion equation
   139,985.26 : 209,978.69 = 34,804.23 : x
2. Step 2: Convert to fraction form
   139,985.26/209,978.69 = 34,804.23/x
3. Step 3: Cross multiply
   139,985.26x = 209,978.69 × 34,804.23
4. Step 4: Simplify right side
   139,985.26x = 7,308,146,621.86
5. Step 5: Solve for x
   x = 7,308,146,621.86/139,985.26
6. Step 6: Final answer
   x = 52,206.54