Finding the Fourth Proportional to 405,588.72, 608,468.76 and 152,863.86

Step by Step Solution

1. Step 1: Write the proportion equation
   405,588.72 : 608,468.76 = 152,863.86 : x
2. Step 2: Convert to fraction form
   405,588.72/608,468.76 = 152,863.86/x
3. Step 3: Cross multiply
   405,588.72x = 608,468.76 × 152,863.86
4. Step 4: Simplify right side
   405,588.72x = 93,012,883,343.01
5. Step 5: Solve for x
   x = 93,012,883,343.01/405,588.72
6. Step 6: Final answer
   x = 229,328.08