Finding the Fourth Proportional to 290,898.27, 436,756.12 and 148,845.42

Step by Step Solution

1. Step 1: Write the proportion equation
   290,898.27 : 436,756.12 = 148,845.42 : x
2. Step 2: Convert to fraction form
   290,898.27/436,756.12 = 148,845.42/x
3. Step 3: Cross multiply
   290,898.27x = 436,756.12 × 148,845.42
4. Step 4: Simplify right side
   290,898.27x = 65,009,147,746.86
5. Step 5: Solve for x
   x = 65,009,147,746.86/290,898.27
6. Step 6: Final answer
   x = 223,477.26