Finding the Fourth Proportional to 113,558.25, 156,709.12 and 64,499.52

Step by Step Solution

1. Step 1: Write the proportion equation
   113,558.25 : 156,709.12 = 64,499.52 : x
2. Step 2: Convert to fraction form
   113,558.25/156,709.12 = 64,499.52/x
3. Step 3: Cross multiply
   113,558.25x = 156,709.12 × 64,499.52
4. Step 4: Simplify right side
   113,558.25x = 10,107,663,276.85
5. Step 5: Solve for x
   x = 10,107,663,276.85/113,558.25
6. Step 6: Final answer
   x = 89,008.63