Finding the Fourth Proportional to 175,978.22, 242,786.30 and 115,581.60

Step by Step Solution

1. Step 1: Write the proportion equation
   175,978.22 : 242,786.30 = 115,581.60 : x
2. Step 2: Convert to fraction form
   175,978.22/242,786.30 = 115,581.60/x
3. Step 3: Cross multiply
   175,978.22x = 242,786.30 × 115,581.60
4. Step 4: Simplify right side
   175,978.22x = 28,061,628,434.17
5. Step 5: Solve for x
   x = 28,061,628,434.17/175,978.22
6. Step 6: Final answer
   x = 159,460.81