Finding the Fourth Proportional to 103,422.34, 142,719.05 and 63,203.42

Step by Step Solution

1. Step 1: Write the proportion equation
   103,422.34 : 142,719.05 = 63,203.42 : x
2. Step 2: Convert to fraction form
   103,422.34/142,719.05 = 63,203.42/x
3. Step 3: Cross multiply
   103,422.34x = 142,719.05 × 63,203.42
4. Step 4: Simplify right side
   103,422.34x = 9,020,332,059.15
5. Step 5: Solve for x
   x = 9,020,332,059.15/103,422.34
6. Step 6: Final answer
   x = 87,218.41