Finding the Fourth Proportional to 83,445.36, 115,154.72 and 45,719.60

Step by Step Solution

1. Step 1: Write the proportion equation
   83,445.36 : 115,154.72 = 45,719.60 : x
2. Step 2: Convert to fraction form
   83,445.36/115,154.72 = 45,719.60/x
3. Step 3: Cross multiply
   83,445.36x = 115,154.72 × 45,719.60
4. Step 4: Simplify right side
   83,445.36x = 5,264,827,736.51
5. Step 5: Solve for x
   x = 5,264,827,736.51/83,445.36
6. Step 6: Final answer
   x = 63,093.12