Finding the Fourth Proportional to 105,754.76, 158,623.73 and 42,530.31

Step by Step Solution

1. Step 1: Write the proportion equation
   105,754.76 : 158,623.73 = 42,530.31 : x
2. Step 2: Convert to fraction form
   105,754.76/158,623.73 = 42,530.31/x
3. Step 3: Cross multiply
   105,754.76x = 158,623.73 × 42,530.31
4. Step 4: Simplify right side
   105,754.76x = 6,746,316,357.09
5. Step 5: Solve for x
   x = 6,746,316,357.09/105,754.76
6. Step 6: Final answer
   x = 63,792.08