Finding the Fourth Proportional to 64,385.77, 88,870.88 and 38,888.09

Step by Step Solution

1. Step 1: Write the proportion equation
   64,385.77 : 88,870.88 = 38,888.09 : x
2. Step 2: Convert to fraction form
   64,385.77/88,870.88 = 38,888.09/x
3. Step 3: Cross multiply
   64,385.77x = 88,870.88 × 38,888.09
4. Step 4: Simplify right side
   64,385.77x = 3,456,018,779.82
5. Step 5: Solve for x
   x = 3,456,018,779.82/64,385.77
6. Step 6: Final answer
   x = 53,676.75