Finding the Fourth Proportional to 152,784.29, 210,839.15 and 84,797.28

Step by Step Solution

1. Step 1: Write the proportion equation
   152,784.29 : 210,839.15 = 84,797.28 : x
2. Step 2: Convert to fraction form
   152,784.29/210,839.15 = 84,797.28/x
3. Step 3: Cross multiply
   152,784.29x = 210,839.15 × 84,797.28
4. Step 4: Simplify right side
   152,784.29x = 17,878,586,649.51
5. Step 5: Solve for x
   x = 17,878,586,649.51/152,784.29
6. Step 6: Final answer
   x = 117,018.49