Finding the Fourth Proportional to 151,667.90, 227,641.48 and 76,840.10

Step by Step Solution

1. Step 1: Write the proportion equation
   151,667.90 : 227,641.48 = 76,840.10 : x
2. Step 2: Convert to fraction form
   151,667.90/227,641.48 = 76,840.10/x
3. Step 3: Cross multiply
   151,667.90x = 227,641.48 × 76,840.10
4. Step 4: Simplify right side
   151,667.90x = 17,491,994,087.35
5. Step 5: Solve for x
   x = 17,491,994,087.35/151,667.90
6. Step 6: Final answer
   x = 115,330.89