Finding the Fourth Proportional to 139,182.89, 208,879.29 and 101,839.31

Step by Step Solution

1. Step 1: Write the proportion equation
   139,182.89 : 208,879.29 = 101,839.31 : x
2. Step 2: Convert to fraction form
   139,182.89/208,879.29 = 101,839.31/x
3. Step 3: Cross multiply
   139,182.89x = 208,879.29 × 101,839.31
4. Step 4: Simplify right side
   139,182.89x = 21,272,121,531.54
5. Step 5: Solve for x
   x = 21,272,121,531.54/139,182.89
6. Step 6: Final answer
   x = 152,835.75