Finding the Fourth Proportional to 78,301.59, 117,373.55 and 45,011.67

Step by Step Solution

1. Step 1: Write the proportion equation
   78,301.59 : 117,373.55 = 45,011.67 : x
2. Step 2: Convert to fraction form
   78,301.59/117,373.55 = 45,011.67/x
3. Step 3: Cross multiply
   78,301.59x = 117,373.55 × 45,011.67
4. Step 4: Simplify right side
   78,301.59x = 5,283,179,274.27
5. Step 5: Solve for x
   x = 5,283,179,274.27/78,301.59
6. Step 6: Final answer
   x = 67,472.18