Finding the Fourth Proportional to 104,590.69, 156,869.52 and 86,934.76

Step by Step Solution

1. Step 1: Write the proportion equation
   104,590.69 : 156,869.52 = 86,934.76 : x
2. Step 2: Convert to fraction form
   104,590.69/156,869.52 = 86,934.76/x
3. Step 3: Cross multiply
   104,590.69x = 156,869.52 × 86,934.76
4. Step 4: Simplify right side
   104,590.69x = 13,637,414,072.52
5. Step 5: Solve for x
   x = 13,637,414,072.52/104,590.69
6. Step 6: Final answer
   x = 130,388.41