Finding the Fourth Proportional to 58,150.72, 80,278.47 and 39,130.50

Step by Step Solution

1. Step 1: Write the proportion equation
   58,150.72 : 80,278.47 = 39,130.50 : x
2. Step 2: Convert to fraction form
   58,150.72/80,278.47 = 39,130.50/x
3. Step 3: Cross multiply
   58,150.72x = 80,278.47 × 39,130.50
4. Step 4: Simplify right side
   58,150.72x = 3,141,336,670.34
5. Step 5: Solve for x
   x = 3,141,336,670.34/58,150.72
6. Step 6: Final answer
   x = 54,020.60