Finding the Fourth Proportional to 172,947, 238,666.86 and 93,459

Step by Step Solution

1. Step 1: Write the proportion equation
   172,947 : 238,666.86 = 93,459 : x
2. Step 2: Convert to fraction form
   172,947/238,666.86 = 93,459/x
3. Step 3: Cross multiply
   172,947x = 238,666.86 × 93,459
4. Step 4: Simplify right side
   172,947x = 22,305,566,068.74
5. Step 5: Solve for x
   x = 22,305,566,068.74/172,947
6. Step 6: Final answer
   x = 128,973.42