Finding the Fourth Proportional to 111,511.32, 153,915.12 and 69,045.72

Step by Step Solution

1. Step 1: Write the proportion equation
   111,511.32 : 153,915.12 = 69,045.72 : x
2. Step 2: Convert to fraction form
   111,511.32/153,915.12 = 69,045.72/x
3. Step 3: Cross multiply
   111,511.32x = 153,915.12 × 69,045.72
4. Step 4: Simplify right side
   111,511.32x = 10,627,180,279.29
5. Step 5: Solve for x
   x = 10,627,180,279.29/111,511.32
6. Step 6: Final answer
   x = 95,301.36