Finding the Fourth Proportional to 60,645.15, 83,645.58 and 40,492.35

Step by Step Solution

1. Step 1: Write the proportion equation
   60,645.15 : 83,645.58 = 40,492.35 : x
2. Step 2: Convert to fraction form
   60,645.15/83,645.58 = 40,492.35/x
3. Step 3: Cross multiply
   60,645.15x = 83,645.58 × 40,492.35
4. Step 4: Simplify right side
   60,645.15x = 3,387,006,101.31
5. Step 5: Solve for x
   x = 3,387,006,101.31/60,645.15
6. Step 6: Final answer
   x = 55,849.58