Finding the Fourth Proportional to 91,012, 136,579.46 and 31,848.18

Step by Step Solution

1. Step 1: Write the proportion equation
   91,012 : 136,579.46 = 31,848.18 : x
2. Step 2: Convert to fraction form
   91,012/136,579.46 = 31,848.18/x
3. Step 3: Cross multiply
   91,012x = 136,579.46 × 31,848.18
4. Step 4: Simplify right side
   91,012x = 4,349,807,226.38
5. Step 5: Solve for x
   x = 4,349,807,226.38/91,012
6. Step 6: Final answer
   x = 47,793.78