Finding the Fourth Proportional to 112,602.56, 155,447.78 and 64,846.68

Step by Step Solution

1. Step 1: Write the proportion equation
   112,602.56 : 155,447.78 = 64,846.68 : x
2. Step 2: Convert to fraction form
   112,602.56/155,447.78 = 64,846.68/x
3. Step 3: Cross multiply
   112,602.56x = 155,447.78 × 64,846.68
4. Step 4: Simplify right side
   112,602.56x = 10,080,272,086.35
5. Step 5: Solve for x
   x = 10,080,272,086.35/112,602.56
6. Step 6: Final answer
   x = 89,520.81