Finding the Fourth Proportional to 113,113.68, 156,100.15 and 64,723.47

Step by Step Solution

1. Step 1: Write the proportion equation
   113,113.68 : 156,100.15 = 64,723.47 : x
2. Step 2: Convert to fraction form
   113,113.68/156,100.15 = 64,723.47/x
3. Step 3: Cross multiply
   113,113.68x = 156,100.15 × 64,723.47
4. Step 4: Simplify right side
   113,113.68x = 10,103,342,871.05
5. Step 5: Solve for x
   x = 10,103,342,871.05/113,113.68
6. Step 6: Final answer
   x = 89,320.26