Finding the Fourth Proportional to 111,215.58, 153,477.63 and 60,913.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,215.58 : 153,477.63 = 60,913.50 : x
2. Step 2: Convert to fraction form
   111,215.58/153,477.63 = 60,913.50/x
3. Step 3: Cross multiply
   111,215.58x = 153,477.63 × 60,913.50
4. Step 4: Simplify right side
   111,215.58x = 9,348,859,615.01
5. Step 5: Solve for x
   x = 9,348,859,615.01/111,215.58
6. Step 6: Final answer
   x = 84,060.70