Finding the Fourth Proportional to 191,300.52, 286,977.36 and 84,676.05

Step by Step Solution

1. Step 1: Write the proportion equation
   191,300.52 : 286,977.36 = 84,676.05 : x
2. Step 2: Convert to fraction form
   191,300.52/286,977.36 = 84,676.05/x
3. Step 3: Cross multiply
   191,300.52x = 286,977.36 × 84,676.05
4. Step 4: Simplify right side
   191,300.52x = 24,300,109,284.23
5. Step 5: Solve for x
   x = 24,300,109,284.23/191,300.52
6. Step 6: Final answer
   x = 127,025.84