Finding the Fourth Proportional to 152,837.80, 229,279.74 and 47,665

Step by Step Solution

1. Step 1: Write the proportion equation
   152,837.80 : 229,279.74 = 47,665 : x
2. Step 2: Convert to fraction form
   152,837.80/229,279.74 = 47,665/x
3. Step 3: Cross multiply
   152,837.80x = 229,279.74 × 47,665
4. Step 4: Simplify right side
   152,837.80x = 10,928,618,807.10
5. Step 5: Solve for x
   x = 10,928,618,807.10/152,837.80
6. Step 6: Final answer
   x = 71,504.69