Finding the Fourth Proportional to 42,892.81, 64,347.78 and 14,813.89

Step by Step Solution

1. Step 1: Write the proportion equation
   42,892.81 : 64,347.78 = 14,813.89 : x
2. Step 2: Convert to fraction form
   42,892.81/64,347.78 = 14,813.89/x
3. Step 3: Cross multiply
   42,892.81x = 64,347.78 × 14,813.89
4. Step 4: Simplify right side
   42,892.81x = 953,240,829.35
5. Step 5: Solve for x
   x = 953,240,829.35/42,892.81
6. Step 6: Final answer
   x = 22,223.79