Finding the Fourth Proportional to 99,189, 148,784.31 and 36,859.50

Step by Step Solution

1. Step 1: Write the proportion equation
   99,189 : 148,784.31 = 36,859.50 : x
2. Step 2: Convert to fraction form
   99,189/148,784.31 = 36,859.50/x
3. Step 3: Cross multiply
   99,189x = 148,784.31 × 36,859.50
4. Step 4: Simplify right side
   99,189x = 5,484,115,274.45
5. Step 5: Solve for x
   x = 5,484,115,274.45/99,189
6. Step 6: Final answer
   x = 55,289.55