Finding the Fourth Proportional to 341,978.45, 512,996.84 and 89,292.47

Step by Step Solution

1. Step 1: Write the proportion equation
   341,978.45 : 512,996.84 = 89,292.47 : x
2. Step 2: Convert to fraction form
   341,978.45/512,996.84 = 89,292.47/x
3. Step 3: Cross multiply
   341,978.45x = 512,996.84 × 89,292.47
4. Step 4: Simplify right side
   341,978.45x = 45,806,754,499.33
5. Step 5: Solve for x
   x = 45,806,754,499.33/341,978.45
6. Step 6: Final answer
   x = 133,946.32