Finding the Fourth Proportional to 67,791.48, 101,499.40 and 51,100.92

Step by Step Solution

1. Step 1: Write the proportion equation
   67,791.48 : 101,499.40 = 51,100.92 : x
2. Step 2: Convert to fraction form
   67,791.48/101,499.40 = 51,100.92/x
3. Step 3: Cross multiply
   67,791.48x = 101,499.40 × 51,100.92
4. Step 4: Simplify right side
   67,791.48x = 5,186,712,719.45
5. Step 5: Solve for x
   x = 5,186,712,719.45/67,791.48
6. Step 6: Final answer
   x = 76,509.80