Finding the Fourth Proportional to 152,238.89, 210,088.12 and 84,256.00

Step by Step Solution

1. Step 1: Write the proportion equation
   152,238.89 : 210,088.12 = 84,256.00 : x
2. Step 2: Convert to fraction form
   152,238.89/210,088.12 = 84,256.00/x
3. Step 3: Cross multiply
   152,238.89x = 210,088.12 × 84,256.00
4. Step 4: Simplify right side
   152,238.89x = 17,701,183,902.86
5. Step 5: Solve for x
   x = 17,701,183,902.86/152,238.89
6. Step 6: Final answer
   x = 116,272.42