Finding the Fourth Proportional to 103,451.58, 142,776.37 and 63,156.71

Step by Step Solution

1. Step 1: Write the proportion equation
   103,451.58 : 142,776.37 = 63,156.71 : x
2. Step 2: Convert to fraction form
   103,451.58/142,776.37 = 63,156.71/x
3. Step 3: Cross multiply
   103,451.58x = 142,776.37 × 63,156.71
4. Step 4: Simplify right side
   103,451.58x = 9,017,286,230.83
5. Step 5: Solve for x
   x = 9,017,286,230.83/103,451.58
6. Step 6: Final answer
   x = 87,164.32