Finding the Fourth Proportional to 388,522.31, 582,876.79 and 148,632.29

Step by Step Solution

1. Step 1: Write the proportion equation
   388,522.31 : 582,876.79 = 148,632.29 : x
2. Step 2: Convert to fraction form
   388,522.31/582,876.79 = 148,632.29/x
3. Step 3: Cross multiply
   388,522.31x = 582,876.79 × 148,632.29
4. Step 4: Simplify right side
   388,522.31x = 86,634,312,085.55
5. Step 5: Solve for x
   x = 86,634,312,085.55/388,522.31
6. Step 6: Final answer
   x = 222,984.14