Finding the Fourth Proportional to 101,284.29, 139,743.86 and 58,261.55

Step by Step Solution

1. Step 1: Write the proportion equation
   101,284.29 : 139,743.86 = 58,261.55 : x
2. Step 2: Convert to fraction form
   101,284.29/139,743.86 = 58,261.55/x
3. Step 3: Cross multiply
   101,284.29x = 139,743.86 × 58,261.55
4. Step 4: Simplify right side
   101,284.29x = 8,141,692,896.56
5. Step 5: Solve for x
   x = 8,141,692,896.56/101,284.29
6. Step 6: Final answer
   x = 80,384.56