Finding the Fourth Proportional to 574,445.70, 861,667.17 and 153,721.57

Step by Step Solution

1. Step 1: Write the proportion equation
   574,445.70 : 861,667.17 = 153,721.57 : x
2. Step 2: Convert to fraction form
   574,445.70/861,667.17 = 153,721.57/x
3. Step 3: Cross multiply
   574,445.70x = 861,667.17 × 153,721.57
4. Step 4: Simplify right side
   574,445.70x = 132,456,830,189.86
5. Step 5: Solve for x
   x = 132,456,830,189.86/574,445.70
6. Step 6: Final answer
   x = 230,581.99