Finding the Fourth Proportional to 151,655.50, 209,284.59 and 84,587.50

Step by Step Solution

1. Step 1: Write the proportion equation
   151,655.50 : 209,284.59 = 84,587.50 : x
2. Step 2: Convert to fraction form
   151,655.50/209,284.59 = 84,587.50/x
3. Step 3: Cross multiply
   151,655.50x = 209,284.59 × 84,587.50
4. Step 4: Simplify right side
   151,655.50x = 17,702,860,256.63
5. Step 5: Solve for x
   x = 17,702,860,256.63/151,655.50
6. Step 6: Final answer
   x = 116,730.75