Finding the Fourth Proportional to 58,789.69, 81,085.31 and 40,875.73

Step by Step Solution

1. Step 1: Write the proportion equation
   58,789.69 : 81,085.31 = 40,875.73 : x
2. Step 2: Convert to fraction form
   58,789.69/81,085.31 = 40,875.73/x
3. Step 3: Cross multiply
   58,789.69x = 81,085.31 × 40,875.73
4. Step 4: Simplify right side
   58,789.69x = 3,314,421,238.53
5. Step 5: Solve for x
   x = 3,314,421,238.53/58,789.69
6. Step 6: Final answer
   x = 56,377.59