Finding the Fourth Proportional to 111,121, 153,346.98 and 60,820

Step by Step Solution

1. Step 1: Write the proportion equation
   111,121 : 153,346.98 = 60,820 : x
2. Step 2: Convert to fraction form
   111,121/153,346.98 = 60,820/x
3. Step 3: Cross multiply
   111,121x = 153,346.98 × 60,820
4. Step 4: Simplify right side
   111,121x = 9,326,563,323.60
5. Step 5: Solve for x
   x = 9,326,563,323.60/111,121
6. Step 6: Final answer
   x = 83,931.60