Finding the Fourth Proportional to 103,016.36, 142,150.82 and 57,688.04

Step by Step Solution

1. Step 1: Write the proportion equation
   103,016.36 : 142,150.82 = 57,688.04 : x
2. Step 2: Convert to fraction form
   103,016.36/142,150.82 = 57,688.04/x
3. Step 3: Cross multiply
   103,016.36x = 142,150.82 × 57,688.04
4. Step 4: Simplify right side
   103,016.36x = 8,200,402,190.19
5. Step 5: Solve for x
   x = 8,200,402,190.19/103,016.36
6. Step 6: Final answer
   x = 79,602.91