Finding the Fourth Proportional to 112,167.40, 168,315.90 and 42,053.80

Step by Step Solution

1. Step 1: Write the proportion equation
   112,167.40 : 168,315.90 = 42,053.80 : x
2. Step 2: Convert to fraction form
   112,167.40/168,315.90 = 42,053.80/x
3. Step 3: Cross multiply
   112,167.40x = 168,315.90 × 42,053.80
4. Step 4: Simplify right side
   112,167.40x = 7,078,323,195.42
5. Step 5: Solve for x
   x = 7,078,323,195.42/112,167.40
6. Step 6: Final answer
   x = 63,104.99