Finding the Fourth Proportional to 111,213.72, 153,476.46 and 60,913.08

Step by Step Solution

1. Step 1: Write the proportion equation
   111,213.72 : 153,476.46 = 60,913.08 : x
2. Step 2: Convert to fraction form
   111,213.72/153,476.46 = 60,913.08/x
3. Step 3: Cross multiply
   111,213.72x = 153,476.46 × 60,913.08
4. Step 4: Simplify right side
   111,213.72x = 9,348,723,886.10
5. Step 5: Solve for x
   x = 9,348,723,886.10/111,213.72
6. Step 6: Final answer
   x = 84,060.89