Finding the Fourth Proportional to 112,371.40, 155,037.54 and 64,607.56

Step by Step Solution

1. Step 1: Write the proportion equation
   112,371.40 : 155,037.54 = 64,607.56 : x
2. Step 2: Convert to fraction form
   112,371.40/155,037.54 = 64,607.56/x
3. Step 3: Cross multiply
   112,371.40x = 155,037.54 × 64,607.56
4. Step 4: Simplify right side
   112,371.40x = 10,016,597,167.80
5. Step 5: Solve for x
   x = 10,016,597,167.80/112,371.40
6. Step 6: Final answer
   x = 89,138.31