Finding the Fourth Proportional to 103,595.83, 142,974.89 and 58,275.72

Step by Step Solution

1. Step 1: Write the proportion equation
   103,595.83 : 142,974.89 = 58,275.72 : x
2. Step 2: Convert to fraction form
   103,595.83/142,974.89 = 58,275.72/x
3. Step 3: Cross multiply
   103,595.83x = 142,974.89 × 58,275.72
4. Step 4: Simplify right side
   103,595.83x = 8,331,964,583.83
5. Step 5: Solve for x
   x = 8,331,964,583.83/103,595.83
6. Step 6: Final answer
   x = 80,427.61