Finding the Fourth Proportional to 83,870.84, 115,743.96 and 45,632.78

Step by Step Solution

1. Step 1: Write the proportion equation
   83,870.84 : 115,743.96 = 45,632.78 : x
2. Step 2: Convert to fraction form
   83,870.84/115,743.96 = 45,632.78/x
3. Step 3: Cross multiply
   83,870.84x = 115,743.96 × 45,632.78
4. Step 4: Simplify right side
   83,870.84x = 5,281,718,663.01
5. Step 5: Solve for x
   x = 5,281,718,663.01/83,870.84
6. Step 6: Final answer
   x = 62,974.43