Finding the Fourth Proportional to 112,038.72, 154,619.52 and 64,291.68

Step by Step Solution

1. Step 1: Write the proportion equation
   112,038.72 : 154,619.52 = 64,291.68 : x
2. Step 2: Convert to fraction form
   112,038.72/154,619.52 = 64,291.68/x
3. Step 3: Cross multiply
   112,038.72x = 154,619.52 × 64,291.68
4. Step 4: Simplify right side
   112,038.72x = 9,940,748,701.59
5. Step 5: Solve for x
   x = 9,940,748,701.59/112,038.72
6. Step 6: Final answer
   x = 88,726.01