Finding the Fourth Proportional to 112,543.43, 155,323.32 and 64,806.08

Step by Step Solution

1. Step 1: Write the proportion equation
   112,543.43 : 155,323.32 = 64,806.08 : x
2. Step 2: Convert to fraction form
   112,543.43/155,323.32 = 64,806.08/x
3. Step 3: Cross multiply
   112,543.43x = 155,323.32 × 64,806.08
4. Step 4: Simplify right side
   112,543.43x = 10,065,894,846.68
5. Step 5: Solve for x
   x = 10,065,894,846.68/112,543.43
6. Step 6: Final answer
   x = 89,440.10