Finding the Fourth Proportional to 112,355.24, 155,047.50 and 64,607.49

Step by Step Solution

1. Step 1: Write the proportion equation
   112,355.24 : 155,047.50 = 64,607.49 : x
2. Step 2: Convert to fraction form
   112,355.24/155,047.50 = 64,607.49/x
3. Step 3: Cross multiply
   112,355.24x = 155,047.50 × 64,607.49
4. Step 4: Simplify right side
   112,355.24x = 10,017,229,805.78
5. Step 5: Solve for x
   x = 10,017,229,805.78/112,355.24
6. Step 6: Final answer
   x = 89,156.77