Finding the Fourth Proportional to 111,156.72, 153,381.99 and 63,407.22

Step by Step Solution

1. Step 1: Write the proportion equation
   111,156.72 : 153,381.99 = 63,407.22 : x
2. Step 2: Convert to fraction form
   111,156.72/153,381.99 = 63,407.22/x
3. Step 3: Cross multiply
   111,156.72x = 153,381.99 × 63,407.22
4. Step 4: Simplify right side
   111,156.72x = 9,725,525,583.97
5. Step 5: Solve for x
   x = 9,725,525,583.97/111,156.72
6. Step 6: Final answer
   x = 87,493.82