Finding the Fourth Proportional to 112,977.50, 155,914.61 and 64,581.92

Step by Step Solution

1. Step 1: Write the proportion equation
   112,977.50 : 155,914.61 = 64,581.92 : x
2. Step 2: Convert to fraction form
   112,977.50/155,914.61 = 64,581.92/x
3. Step 3: Cross multiply
   112,977.50x = 155,914.61 × 64,581.92
4. Step 4: Simplify right side
   112,977.50x = 10,069,264,936.73
5. Step 5: Solve for x
   x = 10,069,264,936.73/112,977.50
6. Step 6: Final answer
   x = 89,126.28