Finding the Fourth Proportional to 83,356.61, 115,031.12 and 45,115.25

Step by Step Solution

1. Step 1: Write the proportion equation
   83,356.61 : 115,031.12 = 45,115.25 : x
2. Step 2: Convert to fraction form
   83,356.61/115,031.12 = 45,115.25/x
3. Step 3: Cross multiply
   83,356.61x = 115,031.12 × 45,115.25
4. Step 4: Simplify right side
   83,356.61x = 5,189,656,935.85
5. Step 5: Solve for x
   x = 5,189,656,935.85/83,356.61
6. Step 6: Final answer
   x = 62,258.50