Finding the Fourth Proportional to 112,667.94, 155,436.30 and 64,895.76

Step by Step Solution

1. Step 1: Write the proportion equation
   112,667.94 : 155,436.30 = 64,895.76 : x
2. Step 2: Convert to fraction form
   112,667.94/155,436.30 = 64,895.76/x
3. Step 3: Cross multiply
   112,667.94x = 155,436.30 × 64,895.76
4. Step 4: Simplify right side
   112,667.94x = 10,087,156,820.09
5. Step 5: Solve for x
   x = 10,087,156,820.09/112,667.94
6. Step 6: Final answer
   x = 89,529.97