Finding the Fourth Proportional to 260,399.32, 359,353.89 and 152,973.88

Step by Step Solution

1. Step 1: Write the proportion equation
   260,399.32 : 359,353.89 = 152,973.88 : x
2. Step 2: Convert to fraction form
   260,399.32/359,353.89 = 152,973.88/x
3. Step 3: Cross multiply
   260,399.32x = 359,353.89 × 152,973.88
4. Step 4: Simplify right side
   260,399.32x = 54,971,758,846.39
5. Step 5: Solve for x
   x = 54,971,758,846.39/260,399.32
6. Step 6: Final answer
   x = 211,105.62