Finding the Fourth Proportional to 202,162.35, 278,978.00 and 112,738.35

Step by Step Solution

1. Step 1: Write the proportion equation
   202,162.35 : 278,978.00 = 112,738.35 : x
2. Step 2: Convert to fraction form
   202,162.35/278,978.00 = 112,738.35/x
3. Step 3: Cross multiply
   202,162.35x = 278,978.00 × 112,738.35
4. Step 4: Simplify right side
   202,162.35x = 31,451,518,842.61
5. Step 5: Solve for x
   x = 31,451,518,842.61/202,162.35
6. Step 6: Final answer
   x = 155,575.55