Finding the Fourth Proportional to 105,041.61, 157,431.20 and 67,501.76

Step by Step Solution

1. Step 1: Write the proportion equation
   105,041.61 : 157,431.20 = 67,501.76 : x
2. Step 2: Convert to fraction form
   105,041.61/157,431.20 = 67,501.76/x
3. Step 3: Cross multiply
   105,041.61x = 157,431.20 × 67,501.76
4. Step 4: Simplify right side
   105,041.61x = 10,626,881,954.25
5. Step 5: Solve for x
   x = 10,626,881,954.25/105,041.61
6. Step 6: Final answer
   x = 101,168.31