Finding the Fourth Proportional to 99,546.85, 137,364.69 and 61,300.27

Step by Step Solution

1. Step 1: Write the proportion equation
   99,546.85 : 137,364.69 = 61,300.27 : x
2. Step 2: Convert to fraction form
   99,546.85/137,364.69 = 61,300.27/x
3. Step 3: Cross multiply
   99,546.85x = 137,364.69 × 61,300.27
4. Step 4: Simplify right side
   99,546.85x = 8,420,492,585.47
5. Step 5: Solve for x
   x = 8,420,492,585.47/99,546.85
6. Step 6: Final answer
   x = 84,588.24