Finding the Fourth Proportional to 91,098.10, 136,643.22 and 31,131.93

Step by Step Solution

1. Step 1: Write the proportion equation
   91,098.10 : 136,643.22 = 31,131.93 : x
2. Step 2: Convert to fraction form
   91,098.10/136,643.22 = 31,131.93/x
3. Step 3: Cross multiply
   91,098.10x = 136,643.22 × 31,131.93
4. Step 4: Simplify right side
   91,098.10x = 4,253,967,160.01
5. Step 5: Solve for x
   x = 4,253,967,160.01/91,098.10
6. Step 6: Final answer
   x = 46,696.55