Finding the Fourth Proportional to 152,152.43, 210,142.62 and 103,670.28

Step by Step Solution

1. Step 1: Write the proportion equation
   152,152.43 : 210,142.62 = 103,670.28 : x
2. Step 2: Convert to fraction form
   152,152.43/210,142.62 = 103,670.28/x
3. Step 3: Cross multiply
   152,152.43x = 210,142.62 × 103,670.28
4. Step 4: Simplify right side
   152,152.43x = 21,785,544,255.33
5. Step 5: Solve for x
   x = 21,785,544,255.33/152,152.43
6. Step 6: Final answer
   x = 143,182.37