Finding the Fourth Proportional to 152,421.33, 210,354.35 and 84,459.62

Step by Step Solution

1. Step 1: Write the proportion equation
   152,421.33 : 210,354.35 = 84,459.62 : x
2. Step 2: Convert to fraction form
   152,421.33/210,354.35 = 84,459.62/x
3. Step 3: Cross multiply
   152,421.33x = 210,354.35 × 84,459.62
4. Step 4: Simplify right side
   152,421.33x = 17,766,447,940.46
5. Step 5: Solve for x
   x = 17,766,447,940.46/152,421.33
6. Step 6: Final answer
   x = 116,561.43