Finding the Fourth Proportional to 781,053.10, 1,171,158.38 and 354,356.10

Step by Step Solution

1. Step 1: Write the proportion equation
   781,053.10 : 1,171,158.38 = 354,356.10 : x
2. Step 2: Convert to fraction form
   781,053.10/1,171,158.38 = 354,356.10/x
3. Step 3: Cross multiply
   781,053.10x = 1,171,158.38 × 354,356.10
4. Step 4: Simplify right side
   781,053.10x = 415,007,116,019.12
5. Step 5: Solve for x
   x = 415,007,116,019.12/781,053.10
6. Step 6: Final answer
   x = 531,343.02