Finding the Fourth Proportional to 128,799, 177,682.14 and 91,094.04

Step by Step Solution

1. Step 1: Write the proportion equation
   128,799 : 177,682.14 = 91,094.04 : x
2. Step 2: Convert to fraction form
   128,799/177,682.14 = 91,094.04/x
3. Step 3: Cross multiply
   128,799x = 177,682.14 × 91,094.04
4. Step 4: Simplify right side
   128,799x = 16,185,783,968.45
5. Step 5: Solve for x
   x = 16,185,783,968.45/128,799
6. Step 6: Final answer
   x = 125,667.00