Finding the Fourth Proportional to 152,391.27, 210,303.12 and 91,200.72

Step by Step Solution

1. Step 1: Write the proportion equation
   152,391.27 : 210,303.12 = 91,200.72 : x
2. Step 2: Convert to fraction form
   152,391.27/210,303.12 = 91,200.72/x
3. Step 3: Cross multiply
   152,391.27x = 210,303.12 × 91,200.72
4. Step 4: Simplify right side
   152,391.27x = 19,179,795,426.35
5. Step 5: Solve for x
   x = 19,179,795,426.35/152,391.27
6. Step 6: Final answer
   x = 125,858.89