Finding the Fourth Proportional to 70,384.53, 105,583.50 and 19,783.42

Step by Step Solution

1. Step 1: Write the proportion equation
   70,384.53 : 105,583.50 = 19,783.42 : x
2. Step 2: Convert to fraction form
   70,384.53/105,583.50 = 19,783.42/x
3. Step 3: Cross multiply
   70,384.53x = 105,583.50 × 19,783.42
4. Step 4: Simplify right side
   70,384.53x = 2,088,802,999.88
5. Step 5: Solve for x
   x = 2,088,802,999.88/70,384.53
6. Step 6: Final answer
   x = 29,677.02