Finding the Fourth Proportional to 152,378.91, 210,266.89 and 84,394.10

Step by Step Solution

1. Step 1: Write the proportion equation
   152,378.91 : 210,266.89 = 84,394.10 : x
2. Step 2: Convert to fraction form
   152,378.91/210,266.89 = 84,394.10/x
3. Step 3: Cross multiply
   152,378.91x = 210,266.89 × 84,394.10
4. Step 4: Simplify right side
   152,378.91x = 17,745,285,256.03
5. Step 5: Solve for x
   x = 17,745,285,256.03/152,378.91
6. Step 6: Final answer
   x = 116,455.00