Finding the Fourth Proportional to 42,808.90, 64,196.79 and 14,723.62

Step by Step Solution

1. Step 1: Write the proportion equation
   42,808.90 : 64,196.79 = 14,723.62 : x
2. Step 2: Convert to fraction form
   42,808.90/64,196.79 = 14,723.62/x
3. Step 3: Cross multiply
   42,808.90x = 64,196.79 × 14,723.62
4. Step 4: Simplify right side
   42,808.90x = 945,209,141.18
5. Step 5: Solve for x
   x = 945,209,141.18/42,808.90
6. Step 6: Final answer
   x = 22,079.73