Finding the Fourth Proportional to 152,756.71, 229,080.39 and 52,890.10

Step by Step Solution

1. Step 1: Write the proportion equation
   152,756.71 : 229,080.39 = 52,890.10 : x
2. Step 2: Convert to fraction form
   152,756.71/229,080.39 = 52,890.10/x
3. Step 3: Cross multiply
   152,756.71x = 229,080.39 × 52,890.10
4. Step 4: Simplify right side
   152,756.71x = 12,116,084,735.14
5. Step 5: Solve for x
   x = 12,116,084,735.14/152,756.71
6. Step 6: Final answer
   x = 79,316.22