Finding the Fourth Proportional to 103,491.52, 142,783.92 and 63,190.72

Step by Step Solution

1. Step 1: Write the proportion equation
   103,491.52 : 142,783.92 = 63,190.72 : x
2. Step 2: Convert to fraction form
   103,491.52/142,783.92 = 63,190.72/x
3. Step 3: Cross multiply
   103,491.52x = 142,783.92 × 63,190.72
4. Step 4: Simplify right side
   103,491.52x = 9,022,618,709.22
5. Step 5: Solve for x
   x = 9,022,618,709.22/103,491.52
6. Step 6: Final answer
   x = 87,182.20