Finding the Fourth Proportional to 117,020.77, 175,424.52 and 42,123.31

Step by Step Solution

1. Step 1: Write the proportion equation
   117,020.77 : 175,424.52 = 42,123.31 : x
2. Step 2: Convert to fraction form
   117,020.77/175,424.52 = 42,123.31/x
3. Step 3: Cross multiply
   117,020.77x = 175,424.52 × 42,123.31
4. Step 4: Simplify right side
   117,020.77x = 7,389,460,560.44
5. Step 5: Solve for x
   x = 7,389,460,560.44/117,020.77
6. Step 6: Final answer
   x = 63,146.58