Finding the Fourth Proportional to 191,225.02, 286,826.58 and 72,908.32

Step by Step Solution

1. Step 1: Write the proportion equation
   191,225.02 : 286,826.58 = 72,908.32 : x
2. Step 2: Convert to fraction form
   191,225.02/286,826.58 = 72,908.32/x
3. Step 3: Cross multiply
   191,225.02x = 286,826.58 × 72,908.32
4. Step 4: Simplify right side
   191,225.02x = 20,912,044,079.15
5. Step 5: Solve for x
   x = 20,912,044,079.15/191,225.02
6. Step 6: Final answer
   x = 109,358.31