Finding the Fourth Proportional to 105,237.37, 145,117.06 and 69,381.50

Step by Step Solution

1. Step 1: Write the proportion equation
   105,237.37 : 145,117.06 = 69,381.50 : x
2. Step 2: Convert to fraction form
   105,237.37/145,117.06 = 69,381.50/x
3. Step 3: Cross multiply
   105,237.37x = 145,117.06 × 69,381.50
4. Step 4: Simplify right side
   105,237.37x = 10,068,439,487.73
5. Step 5: Solve for x
   x = 10,068,439,487.73/105,237.37
6. Step 6: Final answer
   x = 95,673.62