Finding the Fourth Proportional to 100,776.88, 151,173.69 and 30,656.80

Step by Step Solution

1. Step 1: Write the proportion equation
   100,776.88 : 151,173.69 = 30,656.80 : x
2. Step 2: Convert to fraction form
   100,776.88/151,173.69 = 30,656.80/x
3. Step 3: Cross multiply
   100,776.88x = 151,173.69 × 30,656.80
4. Step 4: Simplify right side
   100,776.88x = 4,634,501,579.59
5. Step 5: Solve for x
   x = 4,634,501,579.59/100,776.88
6. Step 6: Final answer
   x = 45,987.75