Finding the Fourth Proportional to 152,819.16, 210,879.86 and 84,830.76

Step by Step Solution

1. Step 1: Write the proportion equation
   152,819.16 : 210,879.86 = 84,830.76 : x
2. Step 2: Convert to fraction form
   152,819.16/210,879.86 = 84,830.76/x
3. Step 3: Cross multiply
   152,819.16x = 210,879.86 × 84,830.76
4. Step 4: Simplify right side
   152,819.16x = 17,889,099,004.57
5. Step 5: Solve for x
   x = 17,889,099,004.57/152,819.16
6. Step 6: Final answer
   x = 117,060.58