Finding the Fourth Proportional to 99,781.83, 149,748.89 and 36,661.77

Step by Step Solution

1. Step 1: Write the proportion equation
   99,781.83 : 149,748.89 = 36,661.77 : x
2. Step 2: Convert to fraction form
   99,781.83/149,748.89 = 36,661.77/x
3. Step 3: Cross multiply
   99,781.83x = 149,748.89 × 36,661.77
4. Step 4: Simplify right side
   99,781.83x = 5,490,059,179.63
5. Step 5: Solve for x
   x = 5,490,059,179.63/99,781.83
6. Step 6: Final answer
   x = 55,020.63