Finding the Fourth Proportional to 111,192.35, 153,433.98 and 63,436.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,192.35 : 153,433.98 = 63,436.50 : x
2. Step 2: Convert to fraction form
   111,192.35/153,433.98 = 63,436.50/x
3. Step 3: Cross multiply
   111,192.35x = 153,433.98 × 63,436.50
4. Step 4: Simplify right side
   111,192.35x = 9,733,314,672.27
5. Step 5: Solve for x
   x = 9,733,314,672.27/111,192.35
6. Step 6: Final answer
   x = 87,535.83