Finding the Fourth Proportional to 613,043.34, 919,697.34 and 186,612.50

Step by Step Solution

1. Step 1: Write the proportion equation
   613,043.34 : 919,697.34 = 186,612.50 : x
2. Step 2: Convert to fraction form
   613,043.34/919,697.34 = 186,612.50/x
3. Step 3: Cross multiply
   613,043.34x = 919,697.34 × 186,612.50
4. Step 4: Simplify right side
   613,043.34x = 171,627,019,860.75
5. Step 5: Solve for x
   x = 171,627,019,860.75/613,043.34
6. Step 6: Final answer
   x = 279,959.03