Finding the Fourth Proportional to 482,585.31, 723,883.52 and 145,628.89

Step by Step Solution

1. Step 1: Write the proportion equation
   482,585.31 : 723,883.52 = 145,628.89 : x
2. Step 2: Convert to fraction form
   482,585.31/723,883.52 = 145,628.89/x
3. Step 3: Cross multiply
   482,585.31x = 723,883.52 × 145,628.89
4. Step 4: Simplify right side
   482,585.31x = 105,418,352,061.26
5. Step 5: Solve for x
   x = 105,418,352,061.26/482,585.31
6. Step 6: Final answer
   x = 218,445.01