Finding the Fourth Proportional to 70,996.55, 106,476.59 and 21,064.82

Step by Step Solution

1. Step 1: Write the proportion equation
   70,996.55 : 106,476.59 = 21,064.82 : x
2. Step 2: Convert to fraction form
   70,996.55/106,476.59 = 21,064.82/x
3. Step 3: Cross multiply
   70,996.55x = 106,476.59 × 21,064.82
4. Step 4: Simplify right side
   70,996.55x = 2,242,910,363.43
5. Step 5: Solve for x
   x = 2,242,910,363.43/70,996.55
6. Step 6: Final answer
   x = 31,591.82