Finding the Fourth Proportional to 77,828.81, 116,743.23 and 60,085.37

Step by Step Solution

1. Step 1: Write the proportion equation
   77,828.81 : 116,743.23 = 60,085.37 : x
2. Step 2: Convert to fraction form
   77,828.81/116,743.23 = 60,085.37/x
3. Step 3: Cross multiply
   77,828.81x = 116,743.23 × 60,085.37
4. Step 4: Simplify right side
   77,828.81x = 7,014,559,585.83
5. Step 5: Solve for x
   x = 7,014,559,585.83/77,828.81
6. Step 6: Final answer
   x = 90,128.06