Finding the Fourth Proportional to 48,065.48, 72,010.72 and 47,015.72

Step by Step Solution

1. Step 1: Write the proportion equation
   48,065.48 : 72,010.72 = 47,015.72 : x
2. Step 2: Convert to fraction form
   48,065.48/72,010.72 = 47,015.72/x
3. Step 3: Cross multiply
   48,065.48x = 72,010.72 × 47,015.72
4. Step 4: Simplify right side
   48,065.48x = 3,385,635,848.52
5. Step 5: Solve for x
   x = 3,385,635,848.52/48,065.48
6. Step 6: Final answer
   x = 70,437.99