Finding the Fourth Proportional to 101,375.32, 139,906.56 and 58,931.08

Step by Step Solution

1. Step 1: Write the proportion equation
   101,375.32 : 139,906.56 = 58,931.08 : x
2. Step 2: Convert to fraction form
   101,375.32/139,906.56 = 58,931.08/x
3. Step 3: Cross multiply
   101,375.32x = 139,906.56 × 58,931.08
4. Step 4: Simplify right side
   101,375.32x = 8,244,844,679.88
5. Step 5: Solve for x
   x = 8,244,844,679.88/101,375.32
6. Step 6: Final answer
   x = 81,329.90