Finding the Fourth Proportional to 152,427, 210,328.21 and 84,427.10

Step by Step Solution

1. Step 1: Write the proportion equation
   152,427 : 210,328.21 = 84,427.10 : x
2. Step 2: Convert to fraction form
   152,427/210,328.21 = 84,427.10/x
3. Step 3: Cross multiply
   152,427x = 210,328.21 × 84,427.10
4. Step 4: Simplify right side
   152,427x = 17,757,400,818.49
5. Step 5: Solve for x
   x = 17,757,400,818.49/152,427
6. Step 6: Final answer
   x = 116,497.74