Finding the Fourth Proportional to 112,187.80, 168,232.47 and 42,017.89

Step by Step Solution

1. Step 1: Write the proportion equation
   112,187.80 : 168,232.47 = 42,017.89 : x
2. Step 2: Convert to fraction form
   112,187.80/168,232.47 = 42,017.89/x
3. Step 3: Cross multiply
   112,187.80x = 168,232.47 × 42,017.89
4. Step 4: Simplify right side
   112,187.80x = 7,068,773,418.89
5. Step 5: Solve for x
   x = 7,068,773,418.89/112,187.80
6. Step 6: Final answer
   x = 63,008.40