Finding the Fourth Proportional to 152,598.78, 210,586.77 and 84,620.54

Step by Step Solution

1. Step 1: Write the proportion equation
   152,598.78 : 210,586.77 = 84,620.54 : x
2. Step 2: Convert to fraction form
   152,598.78/210,586.77 = 84,620.54/x
3. Step 3: Cross multiply
   152,598.78x = 210,586.77 × 84,620.54
4. Step 4: Simplify right side
   152,598.78x = 17,819,966,720.72
5. Step 5: Solve for x
   x = 17,819,966,720.72/152,598.78
6. Step 6: Final answer
   x = 116,776.60