Finding the Fourth Proportional to 58,789.56, 81,085.14 and 40,875.60

Step by Step Solution

1. Step 1: Write the proportion equation
   58,789.56 : 81,085.14 = 40,875.60 : x
2. Step 2: Convert to fraction form
   58,789.56/81,085.14 = 40,875.60/x
3. Step 3: Cross multiply
   58,789.56x = 81,085.14 × 40,875.60
4. Step 4: Simplify right side
   58,789.56x = 3,314,403,748.58
5. Step 5: Solve for x
   x = 3,314,403,748.58/58,789.56
6. Step 6: Final answer
   x = 56,377.42