Finding the Fourth Proportional to 83,412.50, 115,109.26 and 45,688.10

Step by Step Solution

1. Step 1: Write the proportion equation
   83,412.50 : 115,109.26 = 45,688.10 : x
2. Step 2: Convert to fraction form
   83,412.50/115,109.26 = 45,688.10/x
3. Step 3: Cross multiply
   83,412.50x = 115,109.26 × 45,688.10
4. Step 4: Simplify right side
   83,412.50x = 5,259,123,381.81
5. Step 5: Solve for x
   x = 5,259,123,381.81/83,412.50
6. Step 6: Final answer
   x = 63,049.58