Finding the Fourth Proportional to 151,741.43, 227,636.87 and 56,978.95

Step by Step Solution

1. Step 1: Write the proportion equation
   151,741.43 : 227,636.87 = 56,978.95 : x
2. Step 2: Convert to fraction form
   151,741.43/227,636.87 = 56,978.95/x
3. Step 3: Cross multiply
   151,741.43x = 227,636.87 × 56,978.95
4. Step 4: Simplify right side
   151,741.43x = 12,970,509,833.89
5. Step 5: Solve for x
   x = 12,970,509,833.89/151,741.43
6. Step 6: Final answer
   x = 85,477.71