Finding the Fourth Proportional to 100,774.86, 139,087.71 and 58,337.34

Step by Step Solution

1. Step 1: Write the proportion equation
   100,774.86 : 139,087.71 = 58,337.34 : x
2. Step 2: Convert to fraction form
   100,774.86/139,087.71 = 58,337.34/x
3. Step 3: Cross multiply
   100,774.86x = 139,087.71 × 58,337.34
4. Step 4: Simplify right side
   100,774.86x = 8,114,007,028.09
5. Step 5: Solve for x
   x = 8,114,007,028.09/100,774.86
6. Step 6: Final answer
   x = 80,516.18