Finding the Fourth Proportional to 58,200.72, 80,347.68 and 39,180.53

Step by Step Solution

1. Step 1: Write the proportion equation
   58,200.72 : 80,347.68 = 39,180.53 : x
2. Step 2: Convert to fraction form
   58,200.72/80,347.68 = 39,180.53/x
3. Step 3: Cross multiply
   58,200.72x = 80,347.68 × 39,180.53
4. Step 4: Simplify right side
   58,200.72x = 3,148,064,284.93
5. Step 5: Solve for x
   x = 3,148,064,284.93/58,200.72
6. Step 6: Final answer
   x = 54,089.78