Finding the Fourth Proportional to 117,139.05, 175,672.21 and 42,249.46

Step by Step Solution

1. Step 1: Write the proportion equation
   117,139.05 : 175,672.21 = 42,249.46 : x
2. Step 2: Convert to fraction form
   117,139.05/175,672.21 = 42,249.46/x
3. Step 3: Cross multiply
   117,139.05x = 175,672.21 × 42,249.46
4. Step 4: Simplify right side
   117,139.05x = 7,422,056,009.51
5. Step 5: Solve for x
   x = 7,422,056,009.51/117,139.05
6. Step 6: Final answer
   x = 63,361.07