Finding the Fourth Proportional to 113,225.30, 156,247.53 and 64,825.62

Step by Step Solution

1. Step 1: Write the proportion equation
   113,225.30 : 156,247.53 = 64,825.62 : x
2. Step 2: Convert to fraction form
   113,225.30/156,247.53 = 64,825.62/x
3. Step 3: Cross multiply
   113,225.30x = 156,247.53 × 64,825.62
4. Step 4: Simplify right side
   113,225.30x = 10,128,843,005.72
5. Step 5: Solve for x
   x = 10,128,843,005.72/113,225.30
6. Step 6: Final answer
   x = 89,457.42