Finding the Fourth Proportional to 112,778.12, 155,614.02 and 64,357.94

Step by Step Solution

1. Step 1: Write the proportion equation
   112,778.12 : 155,614.02 = 64,357.94 : x
2. Step 2: Convert to fraction form
   112,778.12/155,614.02 = 64,357.94/x
3. Step 3: Cross multiply
   112,778.12x = 155,614.02 × 64,357.94
4. Step 4: Simplify right side
   112,778.12x = 10,014,997,706.03
5. Step 5: Solve for x
   x = 10,014,997,706.03/112,778.12
6. Step 6: Final answer
   x = 88,802.67