Finding the Fourth Proportional to 103,100.16, 142,273.92 and 58,388.16

Step by Step Solution

1. Step 1: Write the proportion equation
   103,100.16 : 142,273.92 = 58,388.16 : x
2. Step 2: Convert to fraction form
   103,100.16/142,273.92 = 58,388.16/x
3. Step 3: Cross multiply
   103,100.16x = 142,273.92 × 58,388.16
4. Step 4: Simplify right side
   103,100.16x = 8,307,112,404.79
5. Step 5: Solve for x
   x = 8,307,112,404.79/103,100.16
6. Step 6: Final answer
   x = 80,573.23