Finding the Fourth Proportional to 112,400.64, 155,111.04 and 62,104.32

Step by Step Solution

1. Step 1: Write the proportion equation
   112,400.64 : 155,111.04 = 62,104.32 : x
2. Step 2: Convert to fraction form
   112,400.64/155,111.04 = 62,104.32/x
3. Step 3: Cross multiply
   112,400.64x = 155,111.04 × 62,104.32
4. Step 4: Simplify right side
   112,400.64x = 9,633,065,663.69
5. Step 5: Solve for x
   x = 9,633,065,663.69/112,400.64
6. Step 6: Final answer
   x = 85,702.94