Finding the Fourth Proportional to 112,543.02, 155,304.34 and 64,786.23

Step by Step Solution

1. Step 1: Write the proportion equation
   112,543.02 : 155,304.34 = 64,786.23 : x
2. Step 2: Convert to fraction form
   112,543.02/155,304.34 = 64,786.23/x
3. Step 3: Cross multiply
   112,543.02x = 155,304.34 × 64,786.23
4. Step 4: Simplify right side
   112,543.02x = 10,061,582,529.27
5. Step 5: Solve for x
   x = 10,061,582,529.27/112,543.02
6. Step 6: Final answer
   x = 89,402.10