Finding the Fourth Proportional to 191,168.58, 286,755.58 and 72,846.40

Step by Step Solution

1. Step 1: Write the proportion equation
   191,168.58 : 286,755.58 = 72,846.40 : x
2. Step 2: Convert to fraction form
   191,168.58/286,755.58 = 72,846.40/x
3. Step 3: Cross multiply
   191,168.58x = 286,755.58 × 72,846.40
4. Step 4: Simplify right side
   191,168.58x = 20,889,111,682.91
5. Step 5: Solve for x
   x = 20,889,111,682.91/191,168.58
6. Step 6: Final answer
   x = 109,270.63