Finding the Fourth Proportional to 105,312.72, 158,013.03 and 46,190.82

Step by Step Solution

1. Step 1: Write the proportion equation
   105,312.72 : 158,013.03 = 46,190.82 : x
2. Step 2: Convert to fraction form
   105,312.72/158,013.03 = 46,190.82/x
3. Step 3: Cross multiply
   105,312.72x = 158,013.03 × 46,190.82
4. Step 4: Simplify right side
   105,312.72x = 7,298,751,426.38
5. Step 5: Solve for x
   x = 7,298,751,426.38/105,312.72
6. Step 6: Final answer
   x = 69,305.51