Finding the Fourth Proportional to 112,445.98, 168,693.27 and 42,325.09

Step by Step Solution

1. Step 1: Write the proportion equation
   112,445.98 : 168,693.27 = 42,325.09 : x
2. Step 2: Convert to fraction form
   112,445.98/168,693.27 = 42,325.09/x
3. Step 3: Cross multiply
   112,445.98x = 168,693.27 × 42,325.09
4. Step 4: Simplify right side
   112,445.98x = 7,139,957,835.14
5. Step 5: Solve for x
   x = 7,139,957,835.14/112,445.98
6. Step 6: Final answer
   x = 63,496.78