Finding the Fourth Proportional to 83,920.32, 115,810.04 and 45,680.01

Step by Step Solution

1. Step 1: Write the proportion equation
   83,920.32 : 115,810.04 = 45,680.01 : x
2. Step 2: Convert to fraction form
   83,920.32/115,810.04 = 45,680.01/x
3. Step 3: Cross multiply
   83,920.32x = 115,810.04 × 45,680.01
4. Step 4: Simplify right side
   83,920.32x = 5,290,203,785.30
5. Step 5: Solve for x
   x = 5,290,203,785.30/83,920.32
6. Step 6: Final answer
   x = 63,038.41