Finding the Fourth Proportional to 119,783, 165,365.34 and 72,047

Step by Step Solution

1. Step 1: Write the proportion equation
   119,783 : 165,365.34 = 72,047 : x
2. Step 2: Convert to fraction form
   119,783/165,365.34 = 72,047/x
3. Step 3: Cross multiply
   119,783x = 165,365.34 × 72,047
4. Step 4: Simplify right side
   119,783x = 11,914,076,650.98
5. Step 5: Solve for x
   x = 11,914,076,650.98/119,783
6. Step 6: Final answer
   x = 99,463.84