Finding the Fourth Proportional to 112,449, 168,697.76 and 42,328.08

Step by Step Solution

1. Step 1: Write the proportion equation
   112,449 : 168,697.76 = 42,328.08 : x
2. Step 2: Convert to fraction form
   112,449/168,697.76 = 42,328.08/x
3. Step 3: Cross multiply
   112,449x = 168,697.76 × 42,328.08
4. Step 4: Simplify right side
   112,449x = 7,140,652,281.10
5. Step 5: Solve for x
   x = 7,140,652,281.10/112,449
6. Step 6: Final answer
   x = 63,501.25