Finding the Fourth Proportional to 112,883.87, 155,885.20 and 72,667.53

Step by Step Solution

1. Step 1: Write the proportion equation
   112,883.87 : 155,885.20 = 72,667.53 : x
2. Step 2: Convert to fraction form
   112,883.87/155,885.20 = 72,667.53/x
3. Step 3: Cross multiply
   112,883.87x = 155,885.20 × 72,667.53
4. Step 4: Simplify right side
   112,883.87x = 11,327,792,265.89
5. Step 5: Solve for x
   x = 11,327,792,265.89/112,883.87
6. Step 6: Final answer
   x = 100,349.08