Finding the Fourth Proportional to 101,007.28, 139,390.56 and 58,590.96

Step by Step Solution

1. Step 1: Write the proportion equation
   101,007.28 : 139,390.56 = 58,590.96 : x
2. Step 2: Convert to fraction form
   101,007.28/139,390.56 = 58,590.96/x
3. Step 3: Cross multiply
   101,007.28x = 139,390.56 × 58,590.96
4. Step 4: Simplify right side
   101,007.28x = 8,167,026,725.34
5. Step 5: Solve for x
   x = 8,167,026,725.34/101,007.28
6. Step 6: Final answer
   x = 80,855.82