Finding the Fourth Proportional to 112,171.43, 154,796.69 and 64,434.02

Step by Step Solution

1. Step 1: Write the proportion equation
   112,171.43 : 154,796.69 = 64,434.02 : x
2. Step 2: Convert to fraction form
   112,171.43/154,796.69 = 64,434.02/x
3. Step 3: Cross multiply
   112,171.43x = 154,796.69 × 64,434.02
4. Step 4: Simplify right side
   112,171.43x = 9,974,172,406.50
5. Step 5: Solve for x
   x = 9,974,172,406.50/112,171.43
6. Step 6: Final answer
   x = 88,919.01