Finding the Fourth Proportional to 77,708.00, 116,561.61 and 67,145.87

Step by Step Solution

1. Step 1: Write the proportion equation
   77,708.00 : 116,561.61 = 67,145.87 : x
2. Step 2: Convert to fraction form
   77,708.00/116,561.61 = 67,145.87/x
3. Step 3: Cross multiply
   77,708.00x = 116,561.61 × 67,145.87
4. Step 4: Simplify right side
   77,708.00x = 7,826,631,003.45
5. Step 5: Solve for x
   x = 7,826,631,003.45/77,708.00
6. Step 6: Final answer
   x = 100,718.48