Finding the Fourth Proportional to 152,604.56, 210,590.52 and 84,621.80

Step by Step Solution

1. Step 1: Write the proportion equation
   152,604.56 : 210,590.52 = 84,621.80 : x
2. Step 2: Convert to fraction form
   152,604.56/210,590.52 = 84,621.80/x
3. Step 3: Cross multiply
   152,604.56x = 210,590.52 × 84,621.80
4. Step 4: Simplify right side
   152,604.56x = 17,820,548,865.34
5. Step 5: Solve for x
   x = 17,820,548,865.34/152,604.56
6. Step 6: Final answer
   x = 116,775.99