Finding the Fourth Proportional to 83,389.53, 115,077.60 and 45,663.78

Step by Step Solution

1. Step 1: Write the proportion equation
   83,389.53 : 115,077.60 = 45,663.78 : x
2. Step 2: Convert to fraction form
   83,389.53/115,077.60 = 45,663.78/x
3. Step 3: Cross multiply
   83,389.53x = 115,077.60 × 45,663.78
4. Step 4: Simplify right side
   83,389.53x = 5,254,878,209.33
5. Step 5: Solve for x
   x = 5,254,878,209.33/83,389.53
6. Step 6: Final answer
   x = 63,016.04