Finding the Fourth Proportional to 113,248.01, 169,872.42 and 42,186.30

Step by Step Solution

1. Step 1: Write the proportion equation
   113,248.01 : 169,872.42 = 42,186.30 : x
2. Step 2: Convert to fraction form
   113,248.01/169,872.42 = 42,186.30/x
3. Step 3: Cross multiply
   113,248.01x = 169,872.42 × 42,186.30
4. Step 4: Simplify right side
   113,248.01x = 7,166,288,871.85
5. Step 5: Solve for x
   x = 7,166,288,871.85/113,248.01
6. Step 6: Final answer
   x = 63,279.60