Finding the Fourth Proportional to 404,730, 607,124.43 and 155,412

Step by Step Solution

1. Step 1: Write the proportion equation
   404,730 : 607,124.43 = 155,412 : x
2. Step 2: Convert to fraction form
   404,730/607,124.43 = 155,412/x
3. Step 3: Cross multiply
   404,730x = 607,124.43 × 155,412
4. Step 4: Simplify right side
   404,730x = 94,354,421,915.16
5. Step 5: Solve for x
   x = 94,354,421,915.16/404,730
6. Step 6: Final answer
   x = 233,129.30