Finding the Fourth Proportional to 103,287, 142,536.06 and 58,575

Step by Step Solution

1. Step 1: Write the proportion equation
   103,287 : 142,536.06 = 58,575 : x
2. Step 2: Convert to fraction form
   103,287/142,536.06 = 58,575/x
3. Step 3: Cross multiply
   103,287x = 142,536.06 × 58,575
4. Step 4: Simplify right side
   103,287x = 8,349,049,714.50
5. Step 5: Solve for x
   x = 8,349,049,714.50/103,287
6. Step 6: Final answer
   x = 80,833.50