Finding the Fourth Proportional to 91,145.83, 136,750.20 and 37,866.43

Step by Step Solution

1. Step 1: Write the proportion equation
   91,145.83 : 136,750.20 = 37,866.43 : x
2. Step 2: Convert to fraction form
   91,145.83/136,750.20 = 37,866.43/x
3. Step 3: Cross multiply
   91,145.83x = 136,750.20 × 37,866.43
4. Step 4: Simplify right side
   91,145.83x = 5,178,241,875.79
5. Step 5: Solve for x
   x = 5,178,241,875.79/91,145.83
6. Step 6: Final answer
   x = 56,812.71