Finding the Fourth Proportional to 103,453.58, 142,779.13 and 63,158.71

Step by Step Solution

1. Step 1: Write the proportion equation
   103,453.58 : 142,779.13 = 63,158.71 : x
2. Step 2: Convert to fraction form
   103,453.58/142,779.13 = 63,158.71/x
3. Step 3: Cross multiply
   103,453.58x = 142,779.13 × 63,158.71
4. Step 4: Simplify right side
   103,453.58x = 9,017,745,665.72
5. Step 5: Solve for x
   x = 9,017,745,665.72/103,453.58
6. Step 6: Final answer
   x = 87,167.07