Finding the Fourth Proportional to 291,985.86, 402,941.61 and 162,929.78

Step by Step Solution

1. Step 1: Write the proportion equation
   291,985.86 : 402,941.61 = 162,929.78 : x
2. Step 2: Convert to fraction form
   291,985.86/402,941.61 = 162,929.78/x
3. Step 3: Cross multiply
   291,985.86x = 402,941.61 × 162,929.78
4. Step 4: Simplify right side
   291,985.86x = 65,651,187,870.15
5. Step 5: Solve for x
   x = 65,651,187,870.15/291,985.86
6. Step 6: Final answer
   x = 224,843.72