Finding the Fourth Proportional to 101,317.35, 139,835.31 and 58,900.47

Step by Step Solution

1. Step 1: Write the proportion equation
   101,317.35 : 139,835.31 = 58,900.47 : x
2. Step 2: Convert to fraction form
   101,317.35/139,835.31 = 58,900.47/x
3. Step 3: Cross multiply
   101,317.35x = 139,835.31 × 58,900.47
4. Step 4: Simplify right side
   101,317.35x = 8,236,365,481.60
5. Step 5: Solve for x
   x = 8,236,365,481.60/101,317.35
6. Step 6: Final answer
   x = 81,292.74