Finding the Fourth Proportional to 112,419.96, 155,139.57 and 62,118.96

Step by Step Solution

1. Step 1: Write the proportion equation
   112,419.96 : 155,139.57 = 62,118.96 : x
2. Step 2: Convert to fraction form
   112,419.96/155,139.57 = 62,118.96/x
3. Step 3: Cross multiply
   112,419.96x = 155,139.57 × 62,118.96
4. Step 4: Simplify right side
   112,419.96x = 9,637,108,743.25
5. Step 5: Solve for x
   x = 9,637,108,743.25/112,419.96
6. Step 6: Final answer
   x = 85,724.18