Finding the Fourth Proportional to 152,809.30, 210,874.98 and 84,826.82

Step by Step Solution

1. Step 1: Write the proportion equation
   152,809.30 : 210,874.98 = 84,826.82 : x
2. Step 2: Convert to fraction form
   152,809.30/210,874.98 = 84,826.82/x
3. Step 3: Cross multiply
   152,809.30x = 210,874.98 × 84,826.82
4. Step 4: Simplify right side
   152,809.30x = 17,887,853,970.96
5. Step 5: Solve for x
   x = 17,887,853,970.96/152,809.30
6. Step 6: Final answer
   x = 117,059.98