Finding the Fourth Proportional to 112,409.34, 168,597 and 42,272.28

Step by Step Solution

1. Step 1: Write the proportion equation
   112,409.34 : 168,597 = 42,272.28 : x
2. Step 2: Convert to fraction form
   112,409.34/168,597 = 42,272.28/x
3. Step 3: Cross multiply
   112,409.34x = 168,597 × 42,272.28
4. Step 4: Simplify right side
   112,409.34x = 7,126,979,591.16
5. Step 5: Solve for x
   x = 7,126,979,591.16/112,409.34
6. Step 6: Final answer
   x = 63,402.02