Finding the Fourth Proportional to 755,088.89, 1,042,242.23 and 493,483.55

Step by Step Solution

1. Step 1: Write the proportion equation
   755,088.89 : 1,042,242.23 = 493,483.55 : x
2. Step 2: Convert to fraction form
   755,088.89/1,042,242.23 = 493,483.55/x
3. Step 3: Cross multiply
   755,088.89x = 1,042,242.23 × 493,483.55
4. Step 4: Simplify right side
   755,088.89x = 514,329,391,642.81
5. Step 5: Solve for x
   x = 514,329,391,642.81/755,088.89
6. Step 6: Final answer
   x = 681,150.79