Finding the Fourth Proportional to 299,061.72, 412,471.91 and 191,641.74

Step by Step Solution

1. Step 1: Write the proportion equation
   299,061.72 : 412,471.91 = 191,641.74 : x
2. Step 2: Convert to fraction form
   299,061.72/412,471.91 = 191,641.74/x
3. Step 3: Cross multiply
   299,061.72x = 412,471.91 × 191,641.74
4. Step 4: Simplify right side
   299,061.72x = 79,046,833,575.31
5. Step 5: Solve for x
   x = 79,046,833,575.31/299,061.72
6. Step 6: Final answer
   x = 264,316.12