Finding the Fourth Proportional to 260,400.01, 359,348.78 and 152,979.83

Step by Step Solution

1. Step 1: Write the proportion equation
   260,400.01 : 359,348.78 = 152,979.83 : x
2. Step 2: Convert to fraction form
   260,400.01/359,348.78 = 152,979.83/x
3. Step 3: Cross multiply
   260,400.01x = 359,348.78 × 152,979.83
4. Step 4: Simplify right side
   260,400.01x = 54,973,114,510.21
5. Step 5: Solve for x
   x = 54,973,114,510.21/260,400.01
6. Step 6: Final answer
   x = 211,110.27