Finding the Fourth Proportional to 91,362.28, 137,043.42 and 29,032.78

Step by Step Solution

1. Step 1: Write the proportion equation
   91,362.28 : 137,043.42 = 29,032.78 : x
2. Step 2: Convert to fraction form
   91,362.28/137,043.42 = 29,032.78/x
3. Step 3: Cross multiply
   91,362.28x = 137,043.42 × 29,032.78
4. Step 4: Simplify right side
   91,362.28x = 3,978,751,463.31
5. Step 5: Solve for x
   x = 3,978,751,463.31/91,362.28
6. Step 6: Final answer
   x = 43,549.17