Finding the Fourth Proportional to 101,396.46, 139,937.63 and 58,377.50

Step by Step Solution

1. Step 1: Write the proportion equation
   101,396.46 : 139,937.63 = 58,377.50 : x
2. Step 2: Convert to fraction form
   101,396.46/139,937.63 = 58,377.50/x
3. Step 3: Cross multiply
   101,396.46x = 139,937.63 × 58,377.50
4. Step 4: Simplify right side
   101,396.46x = 8,169,208,003.75
5. Step 5: Solve for x
   x = 8,169,208,003.75/101,396.46
6. Step 6: Final answer
   x = 80,566.99