Finding the Fourth Proportional to 109,368, 150,993.45 and 71,707.86

Step by Step Solution

1. Step 1: Write the proportion equation
   109,368 : 150,993.45 = 71,707.86 : x
2. Step 2: Convert to fraction form
   109,368/150,993.45 = 71,707.86/x
3. Step 3: Cross multiply
   109,368x = 150,993.45 × 71,707.86
4. Step 4: Simplify right side
   109,368x = 10,827,417,173.52
5. Step 5: Solve for x
   x = 10,827,417,173.52/109,368
6. Step 6: Final answer
   x = 98,999.86