Finding the Fourth Proportional to 152,070.11, 209,853 and 84,085.35

Step by Step Solution

1. Step 1: Write the proportion equation
   152,070.11 : 209,853 = 84,085.35 : x
2. Step 2: Convert to fraction form
   152,070.11/209,853 = 84,085.35/x
3. Step 3: Cross multiply
   152,070.11x = 209,853 × 84,085.35
4. Step 4: Simplify right side
   152,070.11x = 17,645,562,953.55
5. Step 5: Solve for x
   x = 17,645,562,953.55/152,070.11
6. Step 6: Final answer
   x = 116,035.71