Finding the Fourth Proportional to 113,292.94, 156,300 and 64,869

Step by Step Solution

1. Step 1: Write the proportion equation
   113,292.94 : 156,300 = 64,869 : x
2. Step 2: Convert to fraction form
   113,292.94/156,300 = 64,869/x
3. Step 3: Cross multiply
   113,292.94x = 156,300 × 64,869
4. Step 4: Simplify right side
   113,292.94x = 10,139,024,700
5. Step 5: Solve for x
   x = 10,139,024,700/113,292.94
6. Step 6: Final answer
   x = 89,493.88