Finding the Fourth Proportional to 112,572.06, 168,758.73 and 42,402.30

Step by Step Solution

1. Step 1: Write the proportion equation
   112,572.06 : 168,758.73 = 42,402.30 : x
2. Step 2: Convert to fraction form
   112,572.06/168,758.73 = 42,402.30/x
3. Step 3: Cross multiply
   112,572.06x = 168,758.73 × 42,402.30
4. Step 4: Simplify right side
   112,572.06x = 7,155,758,297.08
5. Step 5: Solve for x
   x = 7,155,758,297.08/112,572.06
6. Step 6: Final answer
   x = 63,566.02