Finding the Fourth Proportional to 101,160.30, 139,580.34 and 58,131.48

Step by Step Solution

1. Step 1: Write the proportion equation
   101,160.30 : 139,580.34 = 58,131.48 : x
2. Step 2: Convert to fraction form
   101,160.30/139,580.34 = 58,131.48/x
3. Step 3: Cross multiply
   101,160.30x = 139,580.34 × 58,131.48
4. Step 4: Simplify right side
   101,160.30x = 8,114,011,743.10
5. Step 5: Solve for x
   x = 8,114,011,743.10/101,160.30
6. Step 6: Final answer
   x = 80,209.45