Finding the Fourth Proportional to 907,807.23, 1,361,748.42 and 268,111.10

Step by Step Solution

1. Step 1: Write the proportion equation
   907,807.23 : 1,361,748.42 = 268,111.10 : x
2. Step 2: Convert to fraction form
   907,807.23/1,361,748.42 = 268,111.10/x
3. Step 3: Cross multiply
   907,807.23x = 1,361,748.42 × 268,111.10
4. Step 4: Simplify right side
   907,807.23x = 365,099,860,000.72
5. Step 5: Solve for x
   x = 365,099,860,000.72/907,807.23
6. Step 6: Final answer
   x = 402,177.74