Finding the Fourth Proportional to 748,820.42, 1,123,065.39 and 216,225.59

Step by Step Solution

1. Step 1: Write the proportion equation
   748,820.42 : 1,123,065.39 = 216,225.59 : x
2. Step 2: Convert to fraction form
   748,820.42/1,123,065.39 = 216,225.59/x
3. Step 3: Cross multiply
   748,820.42x = 1,123,065.39 × 216,225.59
4. Step 4: Simplify right side
   748,820.42x = 242,835,476,561.33
5. Step 5: Solve for x
   x = 242,835,476,561.33/748,820.42
6. Step 6: Final answer
   x = 324,290.67