Finding the Fourth Proportional to 78,541.02, 117,819.72 and 45,298.62

Step by Step Solution

1. Step 1: Write the proportion equation
   78,541.02 : 117,819.72 = 45,298.62 : x
2. Step 2: Convert to fraction form
   78,541.02/117,819.72 = 45,298.62/x
3. Step 3: Cross multiply
   78,541.02x = 117,819.72 × 45,298.62
4. Step 4: Simplify right side
   78,541.02x = 5,337,070,724.79
5. Step 5: Solve for x
   x = 5,337,070,724.79/78,541.02
6. Step 6: Final answer
   x = 67,952.65