Finding the Fourth Proportional to 113,820.24, 157,100.12 and 69,145.68

Step by Step Solution

1. Step 1: Write the proportion equation
   113,820.24 : 157,100.12 = 69,145.68 : x
2. Step 2: Convert to fraction form
   113,820.24/157,100.12 = 69,145.68/x
3. Step 3: Cross multiply
   113,820.24x = 157,100.12 × 69,145.68
4. Step 4: Simplify right side
   113,820.24x = 10,862,794,625.48
5. Step 5: Solve for x
   x = 10,862,794,625.48/113,820.24
6. Step 6: Final answer
   x = 95,438.16