Finding the Fourth Proportional to 112,910.47, 155,771.99 and 65,154.59

Step by Step Solution

1. Step 1: Write the proportion equation
   112,910.47 : 155,771.99 = 65,154.59 : x
2. Step 2: Convert to fraction form
   112,910.47/155,771.99 = 65,154.59/x
3. Step 3: Cross multiply
   112,910.47x = 155,771.99 × 65,154.59
4. Step 4: Simplify right side
   112,910.47x = 10,149,259,865.78
5. Step 5: Solve for x
   x = 10,149,259,865.78/112,910.47
6. Step 6: Final answer
   x = 89,887.68