Finding the Fourth Proportional to 111,071.98, 153,275.52 and 63,340.69

Step by Step Solution

1. Step 1: Write the proportion equation
   111,071.98 : 153,275.52 = 63,340.69 : x
2. Step 2: Convert to fraction form
   111,071.98/153,275.52 = 63,340.69/x
3. Step 3: Cross multiply
   111,071.98x = 153,275.52 × 63,340.69
4. Step 4: Simplify right side
   111,071.98x = 9,708,577,196.91
5. Step 5: Solve for x
   x = 9,708,577,196.91/111,071.98
6. Step 6: Final answer
   x = 87,407.98