Finding the Fourth Proportional to 342,018.79, 471,967.48 and 189,047.86

Step by Step Solution

1. Step 1: Write the proportion equation
   342,018.79 : 471,967.48 = 189,047.86 : x
2. Step 2: Convert to fraction form
   342,018.79/471,967.48 = 189,047.86/x
3. Step 3: Cross multiply
   342,018.79x = 471,967.48 × 189,047.86
4. Step 4: Simplify right side
   342,018.79x = 89,224,442,083.59
5. Step 5: Solve for x
   x = 89,224,442,083.59/342,018.79
6. Step 6: Final answer
   x = 260,875.85