Finding the Fourth Proportional to 112,723.52, 155,523.24 and 64,970.37

Step by Step Solution

1. Step 1: Write the proportion equation
   112,723.52 : 155,523.24 = 64,970.37 : x
2. Step 2: Convert to fraction form
   112,723.52/155,523.24 = 64,970.37/x
3. Step 3: Cross multiply
   112,723.52x = 155,523.24 × 64,970.37
4. Step 4: Simplify right side
   112,723.52x = 10,104,402,446.40
5. Step 5: Solve for x
   x = 10,104,402,446.40/112,723.52
6. Step 6: Final answer
   x = 89,638.82