Finding the Fourth Proportional to 613,875.32, 916,011.99 and 550,045.22

Step by Step Solution

1. Step 1: Write the proportion equation
   613,875.32 : 916,011.99 = 550,045.22 : x
2. Step 2: Convert to fraction form
   613,875.32/916,011.99 = 550,045.22/x
3. Step 3: Cross multiply
   613,875.32x = 916,011.99 × 550,045.22
4. Step 4: Simplify right side
   613,875.32x = 503,848,020,914.89
5. Step 5: Solve for x
   x = 503,848,020,914.89/613,875.32
6. Step 6: Final answer
   x = 820,766.06