Finding the Fourth Proportional to 152,618.78, 210,612.86 and 84,635.69

Step by Step Solution

1. Step 1: Write the proportion equation
   152,618.78 : 210,612.86 = 84,635.69 : x
2. Step 2: Convert to fraction form
   152,618.78/210,612.86 = 84,635.69/x
3. Step 3: Cross multiply
   152,618.78x = 210,612.86 × 84,635.69
4. Step 4: Simplify right side
   152,618.78x = 17,825,363,570.11
5. Step 5: Solve for x
   x = 17,825,363,570.11/152,618.78
6. Step 6: Final answer
   x = 116,796.66