Finding the Fourth Proportional to 116,719.83, 175,083.12 and 45,639.59

Step by Step Solution

1. Step 1: Write the proportion equation
   116,719.83 : 175,083.12 = 45,639.59 : x
2. Step 2: Convert to fraction form
   116,719.83/175,083.12 = 45,639.59/x
3. Step 3: Cross multiply
   116,719.83x = 175,083.12 × 45,639.59
4. Step 4: Simplify right side
   116,719.83x = 7,990,720,937.31
5. Step 5: Solve for x
   x = 7,990,720,937.31/116,719.83
6. Step 6: Final answer
   x = 68,460.70