Finding the Fourth Proportional to 152,042.53, 209,783.89 and 90,776.81

Step by Step Solution

1. Step 1: Write the proportion equation
   152,042.53 : 209,783.89 = 90,776.81 : x
2. Step 2: Convert to fraction form
   152,042.53/209,783.89 = 90,776.81/x
3. Step 3: Cross multiply
   152,042.53x = 209,783.89 × 90,776.81
4. Step 4: Simplify right side
   152,042.53x = 19,043,512,323.59
5. Step 5: Solve for x
   x = 19,043,512,323.59/152,042.53
6. Step 6: Final answer
   x = 125,251.22