Finding the Fourth Proportional to 112,891.02, 155,794.38 and 64,500.92

Step by Step Solution

1. Step 1: Write the proportion equation
   112,891.02 : 155,794.38 = 64,500.92 : x
2. Step 2: Convert to fraction form
   112,891.02/155,794.38 = 64,500.92/x
3. Step 3: Cross multiply
   112,891.02x = 155,794.38 × 64,500.92
4. Step 4: Simplify right side
   112,891.02x = 10,048,880,061.86
5. Step 5: Solve for x
   x = 10,048,880,061.86/112,891.02
6. Step 6: Final answer
   x = 89,013.99