Finding the Fourth Proportional to 112,442.48, 168,688.02 and 42,321.59

Step by Step Solution

1. Step 1: Write the proportion equation
   112,442.48 : 168,688.02 = 42,321.59 : x
2. Step 2: Convert to fraction form
   112,442.48/168,688.02 = 42,321.59/x
3. Step 3: Cross multiply
   112,442.48x = 168,688.02 × 42,321.59
4. Step 4: Simplify right side
   112,442.48x = 7,139,145,220.35
5. Step 5: Solve for x
   x = 7,139,145,220.35/112,442.48
6. Step 6: Final answer
   x = 63,491.53