Finding the Fourth Proportional to 151,547.50, 209,142.06 and 84,479.50

Step by Step Solution

1. Step 1: Write the proportion equation
   151,547.50 : 209,142.06 = 84,479.50 : x
2. Step 2: Convert to fraction form
   151,547.50/209,142.06 = 84,479.50/x
3. Step 3: Cross multiply
   151,547.50x = 209,142.06 × 84,479.50
4. Step 4: Simplify right side
   151,547.50x = 17,668,216,657.77
5. Step 5: Solve for x
   x = 17,668,216,657.77/151,547.50
6. Step 6: Final answer
   x = 116,585.34