Finding the Fourth Proportional to 384,920.56, 577,404.42 and 148,263.94

Step by Step Solution

1. Step 1: Write the proportion equation
   384,920.56 : 577,404.42 = 148,263.94 : x
2. Step 2: Convert to fraction form
   384,920.56/577,404.42 = 148,263.94/x
3. Step 3: Cross multiply
   384,920.56x = 577,404.42 × 148,263.94
4. Step 4: Simplify right side
   384,920.56x = 85,608,254,282.61
5. Step 5: Solve for x
   x = 85,608,254,282.61/384,920.56
6. Step 6: Final answer
   x = 222,404.99