Finding the Fourth Proportional to 781,499.47, 1,172,236.41 and 249,013.30

Step by Step Solution

1. Step 1: Write the proportion equation
   781,499.47 : 1,172,236.41 = 249,013.30 : x
2. Step 2: Convert to fraction form
   781,499.47/1,172,236.41 = 249,013.30/x
3. Step 3: Cross multiply
   781,499.47x = 1,172,236.41 × 249,013.30
4. Step 4: Simplify right side
   781,499.47x = 291,902,456,834.25
5. Step 5: Solve for x
   x = 291,902,456,834.25/781,499.47
6. Step 6: Final answer
   x = 373,515.87