Finding the Fourth Proportional to 111,892.94, 154,407.72 and 64,113.08

Step by Step Solution

1. Step 1: Write the proportion equation
   111,892.94 : 154,407.72 = 64,113.08 : x
2. Step 2: Convert to fraction form
   111,892.94/154,407.72 = 64,113.08/x
3. Step 3: Cross multiply
   111,892.94x = 154,407.72 × 64,113.08
4. Step 4: Simplify right side
   111,892.94x = 9,899,554,504.98
5. Step 5: Solve for x
   x = 9,899,554,504.98/111,892.94
6. Step 6: Final answer
   x = 88,473.45