Finding the Fourth Proportional to 112,756.47, 155,565.30 and 64,323.60

Step by Step Solution

1. Step 1: Write the proportion equation
   112,756.47 : 155,565.30 = 64,323.60 : x
2. Step 2: Convert to fraction form
   112,756.47/155,565.30 = 64,323.60/x
3. Step 3: Cross multiply
   112,756.47x = 155,565.30 × 64,323.60
4. Step 4: Simplify right side
   112,756.47x = 10,006,520,131.08
5. Step 5: Solve for x
   x = 10,006,520,131.08/112,756.47
6. Step 6: Final answer
   x = 88,744.53