Finding the Fourth Proportional to 139,298.93, 208,945.96 and 34,118.81

Step by Step Solution

1. Step 1: Write the proportion equation
   139,298.93 : 208,945.96 = 34,118.81 : x
2. Step 2: Convert to fraction form
   139,298.93/208,945.96 = 34,118.81/x
3. Step 3: Cross multiply
   139,298.93x = 208,945.96 × 34,118.81
4. Step 4: Simplify right side
   139,298.93x = 7,128,987,509.51
5. Step 5: Solve for x
   x = 7,128,987,509.51/139,298.93
6. Step 6: Final answer
   x = 51,177.62