Finding the Fourth Proportional to 112,607.88, 155,393.73 and 64,868.10

Step by Step Solution

1. Step 1: Write the proportion equation
   112,607.88 : 155,393.73 = 64,868.10 : x
2. Step 2: Convert to fraction form
   112,607.88/155,393.73 = 64,868.10/x
3. Step 3: Cross multiply
   112,607.88x = 155,393.73 × 64,868.10
4. Step 4: Simplify right side
   112,607.88x = 10,080,096,017.01
5. Step 5: Solve for x
   x = 10,080,096,017.01/112,607.88
6. Step 6: Final answer
   x = 89,515.01