Finding the Fourth Proportional to 152,670.13, 210,688.15 and 84,684.89

Step by Step Solution

1. Step 1: Write the proportion equation
   152,670.13 : 210,688.15 = 84,684.89 : x
2. Step 2: Convert to fraction form
   152,670.13/210,688.15 = 84,684.89/x
3. Step 3: Cross multiply
   152,670.13x = 210,688.15 × 84,684.89
4. Step 4: Simplify right side
   152,670.13x = 17,842,101,965.33
5. Step 5: Solve for x
   x = 17,842,101,965.33/152,670.13
6. Step 6: Final answer
   x = 116,867.01