Finding the Fourth Proportional to 111,904.02, 154,418.13 and 64,146.42

Step by Step Solution

1. Step 1: Write the proportion equation
   111,904.02 : 154,418.13 = 64,146.42 : x
2. Step 2: Convert to fraction form
   111,904.02/154,418.13 = 64,146.42/x
3. Step 3: Cross multiply
   111,904.02x = 154,418.13 × 64,146.42
4. Step 4: Simplify right side
   111,904.02x = 9,905,370,222.59
5. Step 5: Solve for x
   x = 9,905,370,222.59/111,904.02
6. Step 6: Final answer
   x = 88,516.66