Finding the Fourth Proportional to 191,008.36, 286,595.34 and 72,713.32

Step by Step Solution

1. Step 1: Write the proportion equation
   191,008.36 : 286,595.34 = 72,713.32 : x
2. Step 2: Convert to fraction form
   191,008.36/286,595.34 = 72,713.32/x
3. Step 3: Cross multiply
   191,008.36x = 286,595.34 × 72,713.32
4. Step 4: Simplify right side
   191,008.36x = 20,839,298,667.93
5. Step 5: Solve for x
   x = 20,839,298,667.93/191,008.36
6. Step 6: Final answer
   x = 109,101.50