Finding the Fourth Proportional to 112,189.32, 168,234.93 and 42,019.47

Step by Step Solution

1. Step 1: Write the proportion equation
   112,189.32 : 168,234.93 = 42,019.47 : x
2. Step 2: Convert to fraction form
   112,189.32/168,234.93 = 42,019.47/x
3. Step 3: Cross multiply
   112,189.32x = 168,234.93 × 42,019.47
4. Step 4: Simplify right side
   112,189.32x = 7,069,142,594.09
5. Step 5: Solve for x
   x = 7,069,142,594.09/112,189.32
6. Step 6: Final answer
   x = 63,010.83