Finding the Fourth Proportional to 112,475.94, 155,209.41 and 64,721.58

Step by Step Solution

1. Step 1: Write the proportion equation
   112,475.94 : 155,209.41 = 64,721.58 : x
2. Step 2: Convert to fraction form
   112,475.94/155,209.41 = 64,721.58/x
3. Step 3: Cross multiply
   112,475.94x = 155,209.41 × 64,721.58
4. Step 4: Simplify right side
   112,475.94x = 10,045,398,246.07
5. Step 5: Solve for x
   x = 10,045,398,246.07/112,475.94
6. Step 6: Final answer
   x = 89,311.53