Finding the Fourth Proportional to 357,978.39, 536,892.06 and 105,190.23

Step by Step Solution

1. Step 1: Write the proportion equation
   357,978.39 : 536,892.06 = 105,190.23 : x
2. Step 2: Convert to fraction form
   357,978.39/536,892.06 = 105,190.23/x
3. Step 3: Cross multiply
   357,978.39x = 536,892.06 × 105,190.23
4. Step 4: Simplify right side
   357,978.39x = 56,475,800,485.61
5. Step 5: Solve for x
   x = 56,475,800,485.61/357,978.39
6. Step 6: Final answer
   x = 157,763.16